org.mule.DefaultMuleMessage Maven / Gradle / Ivy
/*
* $Id: DefaultMuleMessage.java 20705 2010-12-14 16:11:01Z dfeist $
* --------------------------------------------------------------------------------------
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
*
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule;
import org.mule.api.ExceptionPayload;
import org.mule.api.MuleContext;
import org.mule.api.MuleEvent;
import org.mule.api.MuleException;
import org.mule.api.MuleMessage;
import org.mule.api.MuleRuntimeException;
import org.mule.api.ThreadSafeAccess;
import org.mule.api.config.MuleProperties;
import org.mule.api.transformer.DataType;
import org.mule.api.transformer.MessageTransformer;
import org.mule.api.transformer.Transformer;
import org.mule.api.transformer.TransformerException;
import org.mule.api.transport.OutputHandler;
import org.mule.api.transport.PropertyScope;
import org.mule.config.MuleManifest;
import org.mule.config.i18n.CoreMessages;
import org.mule.transformer.types.DataTypeFactory;
import org.mule.transformer.types.MimeTypes;
import org.mule.transport.NullPayload;
import org.mule.util.ClassUtils;
import org.mule.util.ObjectUtils;
import org.mule.util.StringMessageUtils;
import org.mule.util.StringUtils;
import org.mule.util.UUID;
import org.mule.util.store.DeserializationPostInitialisable;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Reader;
import java.io.Serializable;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import edu.emory.mathcs.backport.java.util.concurrent.ConcurrentHashMap;
import edu.emory.mathcs.backport.java.util.concurrent.CopyOnWriteArrayList;
import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicBoolean;
import edu.emory.mathcs.backport.java.util.concurrent.atomic.AtomicReference;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* DefaultMuleMessage is a wrapper that contains a payload and properties
* associated with the payload.
*/
public class DefaultMuleMessage implements MuleMessage, ThreadSafeAccess, DeserializationPostInitialisable
{
protected static final String NOT_SET = "";
private static final long serialVersionUID = 1541720810851984844L;
private static final Log logger = LogFactory.getLog(DefaultMuleMessage.class);
private static final List> consumableClasses = new ArrayList>();
/**
* The default UUID for the message. If the underlying transport has the notion of a
* message id, this uuid will be ignored
*/
private String id = UUID.getUUID();
private transient Object payload;
private transient Object originalPayload;
/**
* If an exception occurs while processing this message an exception payload
* will be attached here
*/
private ExceptionPayload exceptionPayload;
/**
* Scoped properties for this message
*/
private MessagePropertiesContext properties = new MessagePropertiesContext();
/**
* Collection of attachments that were attached to the incoming message
*/
@SuppressWarnings("unchecked")
private Map inboundAttachments = new ConcurrentHashMap();
/**
* Collection of attachments that will be sent out with this message
*/
@SuppressWarnings("unchecked")
private Map outboundAttachments = new ConcurrentHashMap();
private transient List appliedTransformerHashCodes;
private transient byte[] cache;
protected transient MuleContext muleContext;
// these are transient because serialisation generates a new instance
// so we allow mutation again (and we can't serialize threads anyway)
private transient AtomicReference ownerThread = null;
private transient AtomicBoolean mutable = null;
private DataType dataType;
static
{
addToConsumableClasses("javax.xml.stream.XMLStreamReader");
addToConsumableClasses("javax.xml.transform.stream.StreamSource");
consumableClasses.add(OutputHandler.class);
consumableClasses.add(InputStream.class);
consumableClasses.add(Reader.class);
}
private static void addToConsumableClasses(String className)
{
try
{
consumableClasses.add(ClassUtils.loadClass(className, DefaultMuleMessage.class));
}
catch (ClassNotFoundException e)
{
// ignore
}
}
public DefaultMuleMessage(Object message, MuleContext muleContext)
{
this(message, (Map) null, muleContext);
}
public DefaultMuleMessage(Object message, Map outboundProperties, MuleContext muleContext)
{
this(message, outboundProperties, null, muleContext);
}
public DefaultMuleMessage(Object message, Map outboundProperties, Map attachments, MuleContext muleContext)
{
this(message, null, outboundProperties, attachments, muleContext);
}
public DefaultMuleMessage(Object message, Map inboundProperties,
Map outboundProperties, Map attachments,
MuleContext muleContext)
{
setMuleContext(muleContext);
initAppliedTransformerHashCodes();
if (message instanceof MuleMessage)
{
MuleMessage muleMessage = (MuleMessage) message;
setPayload(muleMessage.getPayload());
copyMessageProperties(muleMessage);
}
else
{
setPayload(message);
originalPayload = message;
}
addProperties(inboundProperties, PropertyScope.INBOUND);
addProperties(outboundProperties);
//Add inbound attachments
if (attachments != null)
{
inboundAttachments = attachments;
}
resetAccessControl();
}
public DefaultMuleMessage(Object message, MuleMessage previous, MuleContext muleContext)
{
id = previous.getUniqueId();
setMuleContext(muleContext);
initAppliedTransformerHashCodes();
setEncoding(previous.getEncoding());
if (message instanceof MuleMessage)
{
MuleMessage payloadMessage = (MuleMessage) message;
setPayload(payloadMessage.getPayload());
copyMessageProperties(payloadMessage);
}
else
{
setPayload(message);
copyMessageProperties(previous);
}
originalPayload = previous.getPayload();
if (previous.getExceptionPayload() != null)
{
setExceptionPayload(previous.getExceptionPayload());
}
copyAttachments(previous);
resetAccessControl();
}
private void copyMessageProperties(MuleMessage muleMessage)
{
// explicitly copy INBOUND message properties over. This cannot be done in the loop below
Map inboundProperties =
((DefaultMuleMessage) muleMessage).properties.getScopedProperties(PropertyScope.INBOUND);
addInboundProperties(inboundProperties);
for (PropertyScope scope : PropertyScope.ALL_SCOPES)
{
try
{
for (String name : muleMessage.getPropertyNames(scope))
{
Object value = muleMessage.getProperty(name, scope);
if (value != null)
{
setProperty(name, value, scope);
}
}
}
catch (IllegalArgumentException iae)
{
// ignore non-registered property scope
}
}
}
private void copyAttachments(MuleMessage previous)
{
if (previous.getInboundAttachmentNames().size() > 0)
{
for (String name : previous.getInboundAttachmentNames())
{
try
{
inboundAttachments.put(name, previous.getInboundAttachment(name));
}
catch (Exception e)
{
throw new MuleRuntimeException(CoreMessages.failedToReadAttachment(name), e);
}
}
}
if (previous.getOutboundAttachmentNames().size() > 0)
{
for (String name : previous.getOutboundAttachmentNames())
{
try
{
addOutboundAttachment(name, previous.getOutboundAttachment(name));
}
catch (Exception e)
{
throw new MuleRuntimeException(CoreMessages.failedToReadAttachment(name), e);
}
}
}
}
public DefaultMuleMessage(MuleMessage message)
{
this(message.getPayload(), message, message.getMuleContext());
}
private void setMuleContext(MuleContext context)
{
if (context == null)
{
throw new IllegalArgumentException(CoreMessages.objectIsNull("muleContext").getMessage());
}
muleContext = context;
}
@SuppressWarnings("unchecked")
private void initAppliedTransformerHashCodes()
{
appliedTransformerHashCodes = new CopyOnWriteArrayList();
}
/**
* {@inheritDoc}
*/
public T getPayload(Class outputType) throws TransformerException
{
return (T) getPayload(DataTypeFactory.create(outputType), getEncoding());
}
/**
* {@inheritDoc}
*/
public T getPayload(DataType outputType) throws TransformerException
{
return getPayload(outputType, getEncoding());
}
public MuleContext getMuleContext()
{
return muleContext;
}
/**
* Will attempt to obtain the payload of this message with the desired Class type. This will
* try and resolve a transformer that can do this transformation. If a transformer cannot be
* found an exception is thrown. Any transformers added to the registry will be checked for
* compatability.
*
* @param resultType the desired return type
* @param encoding the encoding to use if required
* @return The converted payload of this message. Note that this method will not alter the
* payload of this message unless the payload is an {@link InputStream} in which
* case the stream will be read and the payload will become the fully read stream.
* @throws TransformerException if a transformer cannot be found or there is an error during
* transformation of the payload.
* @since 3.0
*/
@SuppressWarnings("unchecked")
protected T getPayload(DataType resultType, String encoding) throws TransformerException
{
// Handle null by ignoring the request
if (resultType == null)
{
throw new IllegalArgumentException(CoreMessages.objectIsNull("resultType").getMessage());
}
DataType source = DataTypeFactory.createFromObject(this);
// If no conversion is necessary, just return the payload as-is
if (resultType.isCompatibleWith(source))
{
return (T) getPayload();
}
// The transformer to execute on this message
Transformer transformer = muleContext.getRegistry().lookupTransformer(source, resultType);
if (transformer == null)
{
throw new TransformerException(CoreMessages.noTransformerFoundForMessage(source, resultType));
}
// Pass in the message itself
Object result = transformer.transform(this, encoding);
// Unless we disallow Object.class as a valid return type we need to do this extra check
if (!resultType.getType().isAssignableFrom(result.getClass()))
{
throw new TransformerException(CoreMessages.transformOnObjectNotOfSpecifiedType(resultType, result));
}
// If the payload is a stream and we've consumed it, then we should set the payload on the
// message. This is the only time this method will alter the payload on the message
if (isPayloadConsumed(source.getType()))
{
setPayload(result);
}
return (T) result;
}
/**
* Checks if the payload has been consumed for this message. This only applies to Streaming payload types
* since once the stream has been read, the payload of the message should be updated to represent the data read
* from the stream
*
* @param inputCls the input type of the message payload
* @return true if the payload message type was stream-based, false otherwise
*/
protected boolean isPayloadConsumed(Class inputCls)
{
return InputStream.class.isAssignableFrom(inputCls) || isConsumedFromAdditional(inputCls);
}
private boolean isConsumedFromAdditional(Class inputCls)
{
if (consumableClasses.isEmpty())
{
return false;
}
for (Class c : consumableClasses)
{
if (c.isAssignableFrom(inputCls))
{
return true;
}
}
return false;
}
/**
* {@inheritDoc}
*/
public Object getOriginalPayload()
{
return originalPayload;
}
public void setInboundProperty(String key, Object value)
{
setProperty(key, value, PropertyScope.INBOUND);
}
public void setInvocationProperty(String key, Object value)
{
setProperty(key, value, PropertyScope.INVOCATION);
}
public void setOutboundProperty(String key, Object value)
{
setProperty(key, value, PropertyScope.OUTBOUND);
}
public void setSessionProperty(String key, Object value)
{
setProperty(key, value, PropertyScope.SESSION);
}
/**
* {@inheritDoc}
*/
public void setProperty(String key, Object value, PropertyScope scope)
{
assertAccess(WRITE);
if (key != null)
{
if (value != null)
{
properties.setProperty(key, value, scope);
}
else
{
logger.warn("setProperty(key, value) called with null value; removing key: " + key
+ "; please report the following stack trace to " + MuleManifest.getDevListEmail(),
new Throwable());
properties.removeProperty(key);
}
}
else
{
logger.warn("setProperty(key, value) ignored because of null key for object: " + value
+ "; please report the following stack trace to " + MuleManifest.getDevListEmail(),
new Throwable());
}
}
/**
* {@inheritDoc}
*/
@Deprecated
public Object getProperty(String key)
{
assertAccess(READ);
return properties.getProperty(key, PropertyScope.OUTBOUND);
}
/**
* {@inheritDoc}
*/
public Object removeProperty(String key)
{
//TODO
//logger.warn("MuleMessage.removeProperty() method is deprecated, use MuleMessage.removeProperty(String, PropertyScope) instead. This method will be removed in the next point release");
//return removeProperty(key, PropertyScope.OUTBOUND);
assertAccess(WRITE);
return properties.removeProperty(key);
}
/**
* {@inheritDoc}
*/
public Object removeProperty(String key, PropertyScope scope)
{
assertAccess(WRITE);
return properties.removeProperty(key, scope);
}
/**
* Set a property on the message. This method will now set a value on the outbound scope only.
*
* @param key the key on which to associate the value
* @param value the property value
* @see #setInboundProperty(String, Object)
* @see #setInvocationProperty(String, Object)
* @see #setOutboundProperty(String, Object)
* @see #setSessionProperty(String, Object)
* @deprecated use {@link #setProperty(String, Object, org.mule.api.transport.PropertyScope)} or
* preferrably any of the scope-specific set methods.
*/
@Deprecated
public void setProperty(String key, Object value)
{
assertAccess(WRITE);
if (key != null)
{
if (value != null)
{
properties.setProperty(key, value, PropertyScope.OUTBOUND);
}
else
{
logger.warn("setProperty(key, value) called with null value; removing key: " + key
+ "; please report the following stack trace to " + MuleManifest.getDevListEmail(),
new Throwable());
properties.removeProperty(key);
}
}
else
{
logger.warn("setProperty(key, value) ignored because of null key for object: " + value
+ "; please report the following stack trace to " + MuleManifest.getDevListEmail(),
new Throwable());
}
}
/**
* {@inheritDoc}
*/
public final String getPayloadAsString() throws Exception
{
assertAccess(READ);
return getPayloadAsString(getEncoding());
}
/**
* {@inheritDoc}
*/
public String getPayloadForLogging(String encoding)
{
try
{
return getPayloadAsString(encoding);
}
catch (Exception e)
{
// TODO Auto-generated catch block
return "[Messaage could not be converted to string]";
}
}
/**
* {@inheritDoc}
*/
public String getPayloadForLogging()
{
try
{
return getPayloadAsString();
}
catch (Exception e)
{
// TODO Auto-generated catch block
return "[Messaage could not be converted to string]";
}
}
/**
* {@inheritDoc}
*/
public byte[] getPayloadAsBytes() throws Exception
{
assertAccess(READ);
if (cache != null)
{
return cache;
}
byte[] result = getPayload(DataType.BYTE_ARRAY_DATA_TYPE);
if (muleContext.getConfiguration().isCacheMessageAsBytes())
{
cache = result;
}
return result;
}
/**
* {@inheritDoc}
*/
public String getPayloadAsString(String encoding) throws Exception
{
assertAccess(READ);
if (cache != null)
{
return new String(cache, encoding);
}
String result = getPayload(DataType.STRING_DATA_TYPE, encoding);
if (muleContext.getConfiguration().isCacheMessageAsBytes())
{
cache = result.getBytes(encoding);
}
return result;
}
/**
* {@inheritDoc}
*
* @deprecated use {@link #getPropertyNames(org.mule.api.transport.PropertyScope)}
*/
@Deprecated
public Set getPropertyNames()
{
//TODO logger.warn("MuleMessage.getPropertyNames() method is deprecated, use MuleMessage.getOutboundPropertyNames() instead. This method will be removed in the next point release");
//return getOutboundPropertyNames();
assertAccess(READ);
return properties.getPropertyNames();
}
/**
* {@inheritDoc}
*/
public Set getPropertyNames(PropertyScope scope)
{
assertAccess(READ);
if (PropertyScope.SESSION.equals(scope))
{
if (RequestContext.getEvent() != null)
{
return RequestContext.getEvent().getSession().getPropertyNamesAsSet();
}
else
{
return Collections.emptySet();
}
}
else
{
return properties.getScopedProperties(scope).keySet();
}
}
public Set getInvocationPropertyNames()
{
return getPropertyNames(PropertyScope.INVOCATION);
}
public Set getInboundPropertyNames()
{
return getPropertyNames(PropertyScope.INBOUND);
}
public Set getOutboundPropertyNames()
{
return getPropertyNames(PropertyScope.OUTBOUND);
}
public Set getSessionPropertyNames()
{
return getPropertyNames(PropertyScope.SESSION);
}
//** {@inheritDoc} */
/**
* {@inheritDoc}
*/
public String getUniqueId()
{
assertAccess(READ);
return id;
}
public void setUniqueId(String uid)
{
assertAccess(WRITE);
id = uid;
}
/**
* {@inheritDoc}
*/
public Object getProperty(String name, Object defaultValue)
{
//TODO logger.warn("MuleMessage.getProperty() method is deprecated, use MuleMessage.getOutboundProperty() instead. This method will be removed in the next point release");
//return getOutboundProperty(name, defaultValue);
assertAccess(READ);
return properties.getProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public T getProperty(String name, PropertyScope scope)
{
assertAccess(READ);
return (T) properties.getProperty(name, scope);
}
public T getInboundProperty(String name, T defaultValue)
{
return getProperty(name, PropertyScope.INBOUND, defaultValue);
}
public T getInboundProperty(String name)
{
return getProperty(name, PropertyScope.INBOUND, (T) null);
}
public T getInvocationProperty(String name, T defaultValue)
{
return getProperty(name, PropertyScope.INVOCATION, defaultValue);
}
public T getInvocationProperty(String name)
{
return getInvocationProperty(name, (T) null);
}
public T getOutboundProperty(String name, T defaultValue)
{
return getProperty(name, PropertyScope.OUTBOUND, defaultValue);
}
public T getOutboundProperty(String name)
{
return getOutboundProperty(name, (T) null);
}
public T getSessionProperty(String name, T defaultValue)
{
return getProperty(name, PropertyScope.SESSION, defaultValue);
}
public T getSessionProperty(String name)
{
return getSessionProperty(name, (T) null);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public T getProperty(String name, PropertyScope scope, T defaultValue)
{
assertAccess(READ);
T result;
//Note that we need to keep the (redundant) casts in here because the compiler compiler complains
//about primitive types being cast to a generic type
if (defaultValue instanceof Boolean)
{
result = (T) (Boolean) ObjectUtils.getBoolean(getProperty(name, scope), (Boolean) defaultValue);
}
else if (defaultValue instanceof Byte)
{
result = (T) (Byte) ObjectUtils.getByte(getProperty(name, scope), (Byte) defaultValue);
}
else if (defaultValue instanceof Integer)
{
result = (T) (Integer) ObjectUtils.getInt(getProperty(name, scope), (Integer) defaultValue);
}
else if (defaultValue instanceof Short)
{
result = (T) (Short) ObjectUtils.getShort(getProperty(name, scope), (Short) defaultValue);
}
else if (defaultValue instanceof Long)
{
result = (T) (Long) ObjectUtils.getLong(getProperty(name, scope), (Long) defaultValue);
}
else if (defaultValue instanceof Float)
{
result = (T) (Float) ObjectUtils.getFloat(getProperty(name, scope), (Float) defaultValue);
}
else if (defaultValue instanceof Double)
{
result = (T) (Double) ObjectUtils.getDouble(getProperty(name, scope), (Double) defaultValue);
}
else if (defaultValue instanceof String)
{
result = (T) (String) ObjectUtils.getString(getProperty(name, scope), (String) defaultValue);
}
else
{
Object temp = getProperty(name, scope);
if (temp == null)
{
return defaultValue;
}
else if (defaultValue == null)
{
return (T) temp;
}
//If defaultValue is set and the result is not null, then validate that they are assignable
else if (defaultValue.getClass().isAssignableFrom(temp.getClass()))
{
result = (T) temp;
}
else
{
throw new IllegalArgumentException(CoreMessages.objectNotOfCorrectType(temp.getClass(), defaultValue.getClass()).getMessage());
}
}
return result;
}
/**
* {@inheritDoc}
*/
public void setCorrelationId(String id)
{
assertAccess(WRITE);
if (StringUtils.isNotBlank(id))
{
setProperty(MuleProperties.MULE_CORRELATION_ID_PROPERTY, id, PropertyScope.OUTBOUND);
}
else
{
removeProperty(MuleProperties.MULE_CORRELATION_ID_PROPERTY);
}
}
/**
* {@inheritDoc}
*/
public String getCorrelationId()
{
assertAccess(READ);
String correlationId = getOutboundProperty(MuleProperties.MULE_CORRELATION_ID_PROPERTY);
if (correlationId == null)
{
correlationId = getInboundProperty(MuleProperties.MULE_CORRELATION_ID_PROPERTY);
}
return correlationId;
}
/**
* {@inheritDoc}
*/
public void setReplyTo(Object replyTo)
{
assertAccess(WRITE);
if (replyTo != null)
{
setProperty(MuleProperties.MULE_REPLY_TO_PROPERTY, replyTo, PropertyScope.OUTBOUND);
}
else
{
removeProperty(MuleProperties.MULE_REPLY_TO_PROPERTY);
removeProperty(MuleProperties.MULE_REPLY_TO_PROPERTY, PropertyScope.INBOUND);
}
}
/**
* {@inheritDoc}
*/
public Object getReplyTo()
{
assertAccess(READ);
Object replyTo = getProperty(MuleProperties.MULE_REPLY_TO_PROPERTY, PropertyScope.OUTBOUND);
if (replyTo == null)
{
// fallback to inbound, use the requestor's setting if the invocation didn't set any
replyTo = getProperty(MuleProperties.MULE_REPLY_TO_PROPERTY, PropertyScope.INBOUND);
}
return replyTo;
}
/**
* {@inheritDoc}
*/
public int getCorrelationSequence()
{
assertAccess(READ);
// need to wrap with another getInt() as some transports operate on it as a String
Object correlationSequence = findPropertyInSpecifiedScopes(MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY,
PropertyScope.OUTBOUND,
PropertyScope.INBOUND);
return ObjectUtils.getInt(correlationSequence, -1);
}
/**
* {@inheritDoc}
*/
public void setCorrelationSequence(int sequence)
{
assertAccess(WRITE);
setOutboundProperty(MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY, sequence);
}
/**
* {@inheritDoc}
*/
public int getCorrelationGroupSize()
{
assertAccess(READ);
// need to wrap with another getInt() as some transports operate on it as a String
Object correlationGroupSize = findPropertyInSpecifiedScopes(MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY,
PropertyScope.OUTBOUND,
PropertyScope.INBOUND);
return ObjectUtils.getInt(correlationGroupSize, -1);
}
/**
* {@inheritDoc}
*/
public void setCorrelationGroupSize(int size)
{
assertAccess(WRITE);
setOutboundProperty(MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY, size);
}
/**
* {@inheritDoc}
*/
public ExceptionPayload getExceptionPayload()
{
assertAccess(READ);
return exceptionPayload;
}
/**
* {@inheritDoc}
*/
public void setExceptionPayload(ExceptionPayload exceptionPayload)
{
assertAccess(WRITE);
this.exceptionPayload = exceptionPayload;
}
@Override
public String toString()
{
assertAccess(READ);
StringBuffer buf = new StringBuffer(120);
final String nl = System.getProperty("line.separator");
// format message for multi-line output, single-line is not readable
buf.append(nl);
buf.append(getClass().getName());
buf.append(nl);
buf.append("{");
buf.append(nl);
buf.append(" id=").append(getUniqueId());
buf.append(nl);
buf.append(" payload=").append(getPayload().getClass().getName());
buf.append(nl);
buf.append(" correlationId=").append(StringUtils.defaultString(getCorrelationId(), NOT_SET));
buf.append(nl);
buf.append(" correlationGroup=").append(getCorrelationGroupSize());
buf.append(nl);
buf.append(" correlationSeq=").append(getCorrelationSequence());
buf.append(nl);
buf.append(" encoding=").append(getEncoding());
buf.append(nl);
buf.append(" exceptionPayload=").append(ObjectUtils.defaultIfNull(exceptionPayload, NOT_SET));
buf.append(nl);
buf.append(StringMessageUtils.headersToString(this));
// no new line here, as headersToString() adds one
buf.append('}');
return buf.toString();
}
/**
* {@inheritDoc}
*/
@Deprecated
public void addAttachment(String name, DataHandler dataHandler) throws Exception
{
logger.warn("MuleMessage.addAttachment() method is deprecated, use MuleMessage.addOutboundAttachment() instead. This method will be removed in the next point release");
addOutboundAttachment(name, dataHandler);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void removeAttachment(String name) throws Exception
{
logger.warn("MuleMessage.removeAttachment() method is deprecated, use MuleMessage.removeOutboundAttachment() instead. This method will be removed in the next point release");
removeOutboundAttachment(name);
}
/**
* {@inheritDoc}
*/
@Deprecated
public DataHandler getAttachment(String name)
{
logger.warn("MuleMessage.getAttachment() method is deprecated, use MuleMessage.getInboundAttachment() instead. This method will be removed in the next point release");
return getInboundAttachment(name);
}
/**
* {@inheritDoc}
*/
@Deprecated
public Set getAttachmentNames()
{
logger.warn("MuleMessage.getAttachmentNames() method is deprecated, use MuleMessage.getInboundAttachmentNames() instead. This method will be removed in the next point release");
return getInboundAttachmentNames();
}
public void addOutboundAttachment(String name, DataHandler dataHandler) throws Exception
{
assertAccess(WRITE);
outboundAttachments.put(name, dataHandler);
}
///TODO this should not be here, but needed so that a message factory can add attachments
//This is not part of the API
public void addInboundAttachment(String name, DataHandler dataHandler) throws Exception
{
assertAccess(WRITE);
inboundAttachments.put(name, dataHandler);
}
public void addOutboundAttachment(String name, Object object, String contentType) throws Exception
{
assertAccess(WRITE);
DataHandler dh;
if (object instanceof File)
{
if (contentType != null)
{
dh = new DataHandler(new FileInputStream((File) object), contentType);
}
else
{
dh = new DataHandler(new FileDataSource((File) object));
}
}
else if (object instanceof URL)
{
if (contentType != null)
{
dh = new DataHandler(((URL) object).openStream(), contentType);
}
else
{
dh = new DataHandler((URL) object);
}
}
else
{
dh = new DataHandler(object, contentType);
}
outboundAttachments.put(name, dh);
}
public void removeOutboundAttachment(String name) throws Exception
{
assertAccess(WRITE);
outboundAttachments.remove(name);
}
public DataHandler getInboundAttachment(String name)
{
assertAccess(READ);
return inboundAttachments.get(name);
}
public DataHandler getOutboundAttachment(String name)
{
assertAccess(READ);
return outboundAttachments.get(name);
}
public Set getInboundAttachmentNames()
{
assertAccess(READ);
return Collections.unmodifiableSet(inboundAttachments.keySet());
}
public Set getOutboundAttachmentNames()
{
assertAccess(READ);
return Collections.unmodifiableSet(outboundAttachments.keySet());
}
@SuppressWarnings("unchecked")
public T findPropertyInAnyScope(String name, T defaultValue)
{
Object value = findPropertyInSpecifiedScopes(name,
PropertyScope.OUTBOUND,
PropertyScope.INVOCATION,
PropertyScope.SESSION,
PropertyScope.INBOUND);
if (value == null)
{
return defaultValue;
}
return (T) value;
}
/**
* {@inheritDoc}
*/
public String getEncoding()
{
assertAccess(READ);
String encoding = null;
if (dataType != null)
{
encoding = dataType.getEncoding();
}
if (encoding != null)
{
return encoding;
}
encoding = getOutboundProperty(MuleProperties.MULE_ENCODING_PROPERTY);
if (encoding != null)
{
return encoding;
}
else
{
return System.getProperty(MuleProperties.MULE_ENCODING_SYSTEM_PROPERTY);
}
}
/**
* {@inheritDoc}
*/
public void setEncoding(String encoding)
{
assertAccess(WRITE);
if (encoding != null)
{
setOutboundProperty(MuleProperties.MULE_ENCODING_PROPERTY, encoding);
}
}
/**
* @param mimeType
* @since 3.0
*/
public void setMimeType(String mimeType)
{
assertAccess(WRITE);
if (mimeType != null && !mimeType.equals(MimeTypes.ANY))
{
String encoding = getEncoding();
if (encoding != null)
{
mimeType = mimeType + ";charset=" + encoding;
}
setOutboundProperty(MuleProperties.CONTENT_TYPE_PROPERTY, mimeType);
}
}
/**
* {@inheritDoc}
*/
public void addProperties(Map props)
{
addProperties(props, properties.getDefaultScope());
}
/**
* {@inheritDoc}
*/
public void addProperties(Map props, PropertyScope scope)
{
assertAccess(WRITE);
if (props != null)
{
synchronized (props)
{
for (Map.Entry entry : props.entrySet())
{
setProperty(entry.getKey(), entry.getValue(), scope);
}
}
}
}
public void addInboundProperties(Map props)
{
properties.addInboundProperties(props);
}
/**
* {@inheritDoc}
*/
public void clearProperties()
{
assertAccess(WRITE);
//Inbound scope is read-only
properties.clearProperties(PropertyScope.INVOCATION);
properties.clearProperties(PropertyScope.OUTBOUND);
}
/**
* {@inheritDoc}
*/
public void clearProperties(PropertyScope scope)
{
assertAccess(WRITE);
properties.clearProperties(scope);
}
/**
* {@inheritDoc}
*/
public Object getPayload()
{
return payload;
}
/**
* {@inheritDoc}
*/
public synchronized void setPayload(Object payload)
{
if (payload == null)
{
this.payload = NullPayload.getInstance();
}
else
{
this.payload = payload;
}
cache = null;
}
/**
* {@inheritDoc}
*/
public void release()
{
cache = null;
appliedTransformerHashCodes.clear();
}
/**
* {@inheritDoc}
*/
public void applyTransformers(MuleEvent event, List transformers) throws MuleException
{
applyTransformers(event, transformers, null);
}
/**
* {@inheritDoc}
*/
public void applyTransformers(MuleEvent event, Transformer... transformers) throws MuleException
{
applyTransformers(event, Arrays.asList(transformers), null);
}
public void applyTransformers(MuleEvent event, List transformers, Class outputType) throws MuleException
{
if (!transformers.isEmpty() && !appliedTransformerHashCodes.contains(transformers.hashCode()))
{
applyAllTransformers(event, transformers);
appliedTransformerHashCodes.add(transformers.hashCode());
}
if (null != outputType && !getPayload().getClass().isAssignableFrom(outputType))
{
setPayload(getPayload(DataTypeFactory.create(outputType)));
}
}
protected void applyAllTransformers(MuleEvent event, List transformers) throws MuleException
{
if (!transformers.isEmpty())
{
for (Transformer transformer : transformers)
{
if (getPayload() == null)
{
if (transformer.isAcceptNull())
{
setPayload(NullPayload.getInstance());
setDataType(null);
}
else
{
if (logger.isDebugEnabled())
{
logger.debug("Transformer " + transformer +
" doesn't support the null payload, exiting from transformer chain.");
}
break;
}
}
Class srcCls = getPayload().getClass();
if (transformer.isSourceDataTypeSupported(DataTypeFactory.create(srcCls)))
{
Object result;
if (transformer instanceof MessageTransformer)
{
result = ((MessageTransformer) transformer).transform(this, event);
}
else
{
result = transformer.transform(this);
}
// Update the RequestContext with the result of the transformation.
RequestContext.internalRewriteEvent(this, false);
if (originalPayload == null && muleContext.getConfiguration().isCacheMessageOriginalPayload())
{
originalPayload = payload;
}
if (result instanceof MuleMessage)
{
if (!result.equals(this))
{
// Only copy the payload and properties of mule message
// transformer result if the message is a different
// instance
synchronized (this)
{
MuleMessage resultMessage = (MuleMessage) result;
setPayload(resultMessage.getPayload());
originalPayload = resultMessage.getOriginalPayload();
copyMessageProperties(resultMessage);
copyAttachments(resultMessage);
}
}
}
else
{
setPayload(result);
}
setDataType(transformer.getReturnDataType());
}
else
{
if (logger.isDebugEnabled())
{
logger.debug("Transformer " + transformer + " doesn't support the source payload: " + srcCls);
}
if (!transformer.isIgnoreBadInput())
{
if (logger.isDebugEnabled())
{
logger.debug("Exiting from transformer chain (ignoreBadInput = false)");
}
break;
}
}
}
}
}
protected void setDataType(DataType dt)
{
dataType = dt;
setEncoding(dt == null ? null : dt.getEncoding());
setMimeType(dt == null ? null : dt.getMimeType());
}
//////////////////////////////// ThreadSafeAccess Impl ///////////////////////////////
/**
* {@inheritDoc}
*/
public ThreadSafeAccess newThreadCopy()
{
return new DefaultMuleMessage(this);
}
/**
* {@inheritDoc}
*/
public void resetAccessControl()
{
// just reset the internal state here as this method is explicitly intended not to
// be used from the outside
if (ownerThread != null)
{
ownerThread.set(null);
}
if (mutable != null)
{
mutable.set(true);
}
}
/**
* {@inheritDoc}
*/
public void assertAccess(boolean write)
{
if (AccessControl.isAssertMessageAccess())
{
initAccessControl();
setOwner();
checkMutable(write);
}
}
private synchronized void initAccessControl()
{
if (null == ownerThread)
{
ownerThread = new AtomicReference();
}
if (null == mutable)
{
mutable = new AtomicBoolean(true);
}
}
private void setOwner()
{
if (null == ownerThread.get())
{
ownerThread.compareAndSet(null, Thread.currentThread());
}
}
private void checkMutable(boolean write)
{
// IF YOU SEE AN EXCEPTION THAT IS RAISED FROM WITHIN THIS CODE
// ============================================================
//
// First, understand that the exception here is not the "real" problem. These exceptions
// give early warning of a much more serious issue that results in unreliable and unpredictable
// code - more than one thread is attempting to change the contents of a message.
//
// Having said that, you can disable these exceptions by defining
// MuleProperties.MULE_THREAD_UNSAFE_MESSAGES_PROPERTY (mule.disable.threadsafemessages)
// (i.e., by adding -Dmule.disable.threadsafemessages=true to the java command line).
//
// To remove the underlying cause, however, you probably need to do one of:
//
// - make sure that the message you are using correctly implements the ThreadSafeAccess
// interface
//
// - make sure that dispatcher and receiver classes copy ThreadSafeAccess instances when
// they are passed between threads
Thread currentThread = Thread.currentThread();
if (currentThread.equals(ownerThread.get()))
{
if (write && !mutable.get())
{
if (isDisabled())
{
logger.warn("Writing to immutable message (exception disabled)");
}
else
{
throw newException("Cannot write to immutable message");
}
}
}
else
{
if (write)
{
if (isDisabled())
{
logger.warn("Non-owner writing to message (exception disabled)");
}
else
{
throw newException("Only owner thread can write to message: "
+ ownerThread.get() + "/" + Thread.currentThread());
}
}
}
}
protected boolean isDisabled()
{
return !AccessControl.isFailOnMessageScribbling();
}
protected IllegalStateException newException(String message)
{
IllegalStateException exception = new IllegalStateException(message);
logger.warn("Message access violation", exception);
return exception;
}
/**
* Determines if the payload of this message is consumable i.e. it can't be read
* more than once. This is here temporarily without adding to MuleMessage
* interface until MULE-4256 is implemented.
*/
public boolean isConsumable()
{
return isConsumedFromAdditional(this.getPayload().getClass());
}
private void writeObject(ObjectOutputStream out) throws Exception
{
out.defaultWriteObject();
if (payload instanceof Serializable)
{
out.writeBoolean(true);
out.writeObject(payload);
}
else
{
out.writeBoolean(false);
byte[] serializablePayload = getPayloadAsBytes();
out.writeInt(serializablePayload.length);
out.write(serializablePayload);
}
// TODO: we don't serialize the originalPayload for now
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException
{
in.defaultReadObject();
boolean payloadWasSerialized = in.readBoolean();
if (payloadWasSerialized)
{
payload = in.readObject();
}
else
{
int payloadSize = in.readInt();
byte[] serializedPayload = new byte[payloadSize];
in.read(serializedPayload);
payload = serializedPayload;
}
}
/**
* Invoked after deserialization. This is called when the marker interface
* {@link org.mule.util.store.DeserializationPostInitialisable} is used. This will get invoked
* after the object has been deserialized passing in the current mulecontext when using either
* {@link org.mule.transformer.wire.SerializationWireFormat},
* {@link org.mule.transformer.wire.SerializedMuleMessageWireFormat} or the
* {@link org.mule.transformer.simple.ByteArrayToSerializable} transformer.
*
* @param muleContext the current muleContext instance
* @throws MuleException if there is an error initializing
*/
public void initAfterDeserialisation(MuleContext muleContext) throws MuleException
{
this.muleContext = muleContext;
}
public DataType getDataType()
{
return dataType;
}
/**
* {@inheritDoc}
*/
@Deprecated
public int getIntProperty(String name, int defaultValue)
{
assertAccess(READ);
logger.warn("MuleMessage.getIntProperty() method is deprecated, use MuleMessage.getInboundProperty() instead. This method will be removed in the next point release");
return getInboundProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@Deprecated
public long getLongProperty(String name, long defaultValue)
{
assertAccess(READ);
logger.warn("MuleMessage.getLongProperty() method is deprecated, use MuleMessage.getInboundProperty() instead. This method will be removed in the next point release");
return getInboundProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@Deprecated
public double getDoubleProperty(String name, double defaultValue)
{
assertAccess(READ);
logger.warn("MuleMessage.getDoubleProperty() method is deprecated, use MuleMessage.getInboundProperty() instead. This method will be removed in the next point release");
return getInboundProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@Deprecated
public boolean getBooleanProperty(String name, boolean defaultValue)
{
assertAccess(READ);
logger.warn("MuleMessage.getBooleanProperty() method is deprecated, use MuleMessage.getInboundProperty() instead. This method will be removed in the next point release");
return getInboundProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void setBooleanProperty(String name, boolean value)
{
assertAccess(WRITE);
logger.warn("MuleMessage.setBooleanProperty() method is deprecated, use MuleMessage.setOutboundProperty() instead. This method will be removed in the next point release");
setOutboundProperty(name, value);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void setIntProperty(String name, int value)
{
assertAccess(WRITE);
logger.warn("MuleMessage.setIntProperty() method is deprecated, use MuleMessage.setOutboundProperty() instead. This method will be removed in the next point release");
setOutboundProperty(name, value);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void setLongProperty(String name, long value)
{
assertAccess(WRITE);
logger.warn("MuleMessage.setLongProperty() method is deprecated, use MuleMessage.setOutboundProperty() instead. This method will be removed in the next point release");
setOutboundProperty(name, value);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void setDoubleProperty(String name, double value)
{
assertAccess(WRITE);
logger.warn("MuleMessage.setDoubleProperty() method is deprecated, use MuleMessage.setOutboundProperty() instead. This method will be removed in the next point release");
setOutboundProperty(name, value);
}
/**
* {@inheritDoc}
*/
@Deprecated
public String getStringProperty(String name, String defaultValue)
{
assertAccess(READ);
logger.warn("MuleMessage.getStringProperty() method is deprecated, use MuleMessage.getInboundProperty() instead. This method will be removed in the next point release");
return getInboundProperty(name, defaultValue);
}
/**
* {@inheritDoc}
*/
@Deprecated
public void setStringProperty(String name, String value)
{
assertAccess(WRITE);
logger.warn("MuleMessage.setStringProperty() method is deprecated, use MuleMessage.setOutboundProperty() instead. This method will be removed in the next point release");
setOutboundProperty(name, value);
}
/**
* Find property in one of the specified scopes, in order
*/
@SuppressWarnings("unchecked")
public T findPropertyInSpecifiedScopes(String name, PropertyScope... scopesToSearch)
{
for (PropertyScope scope : scopesToSearch)
{
Object result = getProperty(name, scope);
if (result != null)
{
return (T) result;
}
}
return null;
}
/**
* {@inheritDoc}
*/
public MuleMessage createInboundMessage() throws Exception
{
DefaultMuleMessage newMessage = new DefaultMuleMessage(getPayload(), this, getMuleContext());
copyToInbound(newMessage);
return newMessage;
}
/*
** copy outbound artifacts to inbound artifacts in the new message
*/
protected void copyToInbound(DefaultMuleMessage newMessage) throws Exception
{
//Copy message, but put all outbound properties and attachments on inbound
//We ignore inbound and invocation scopes since the VM receiver needs to behave the
//same way as any other receiver in Mule and would only receive inbound headers and attachments
Map attachments = new HashMap(3);
for (String name : getOutboundAttachmentNames())
{
attachments.put(name, getOutboundAttachment(name));
}
Map properties = new HashMap(3);
for (String name : getOutboundPropertyNames())
{
properties.put(name, getOutboundProperty(name));
}
newMessage.clearProperties(PropertyScope.INBOUND);
newMessage.clearProperties(PropertyScope.INVOCATION);
newMessage.clearProperties(PropertyScope.OUTBOUND);
for (String s : properties.keySet())
{
newMessage.setInboundProperty(s, properties.get(s));
}
newMessage.inboundAttachments.clear();
newMessage.outboundAttachments.clear();
for (String s : attachments.keySet())
{
newMessage.addInboundAttachment(s, attachments.get(s));
}
newMessage.setCorrelationId(getCorrelationId());
newMessage.setCorrelationGroupSize(getCorrelationGroupSize());
newMessage.setCorrelationSequence(getCorrelationSequence());
newMessage.setReplyTo(getReplyTo());
newMessage.setEncoding(getEncoding());
}
}
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