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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.activemq.artemis.jms.client;

import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import jakarta.jms.DeliveryMode;
import jakarta.jms.Destination;
import jakarta.jms.IllegalStateException;
import jakarta.jms.InvalidDestinationException;
import jakarta.jms.JMSException;
import jakarta.jms.JMSRuntimeException;
import jakarta.jms.Message;
import jakarta.jms.MessageFormatException;
import jakarta.jms.MessageNotWriteableException;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.OutputStream;

import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQException;
import org.apache.activemq.artemis.api.core.ActiveMQPropertyConversionException;
import org.apache.activemq.artemis.api.core.SimpleString;
import org.apache.activemq.artemis.api.core.client.ClientMessage;
import org.apache.activemq.artemis.api.core.client.ClientSession;
import org.apache.activemq.artemis.api.jms.ActiveMQJMSConstants;
import org.apache.activemq.artemis.core.client.ActiveMQClientMessageBundle;
import org.apache.activemq.artemis.core.client.impl.ClientMessageInternal;
import org.apache.activemq.artemis.api.core.RoutingType;
import org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl;
import org.apache.activemq.artemis.reader.MessageUtil;
import org.apache.activemq.artemis.utils.UUID;

import static org.apache.activemq.artemis.jms.client.ActiveMQDestination.QUEUE_QUALIFIED_PREFIX;
import static org.apache.activemq.artemis.jms.client.ActiveMQDestination.TEMP_QUEUE_QUALIFED_PREFIX;
import static org.apache.activemq.artemis.jms.client.ActiveMQDestination.TEMP_TOPIC_QUALIFED_PREFIX;
import static org.apache.activemq.artemis.jms.client.ActiveMQDestination.TOPIC_QUALIFIED_PREFIX;
import static org.apache.activemq.artemis.utils.Preconditions.checkNotNull;

/**
 * ActiveMQ Artemis implementation of a JMS Message.
 * 
* JMS Messages only live on the client side - the server only deals with MessageImpl * instances */ public class ActiveMQMessage implements jakarta.jms.Message { public static final byte TYPE = org.apache.activemq.artemis.api.core.Message.DEFAULT_TYPE; public static final SimpleString OLD_QUEUE_QUALIFIED_PREFIX = SimpleString.toSimpleString(ActiveMQDestination.QUEUE_QUALIFIED_PREFIX + PacketImpl.OLD_QUEUE_PREFIX); public static final SimpleString OLD_TEMP_QUEUE_QUALIFED_PREFIX = SimpleString.toSimpleString(ActiveMQDestination.TEMP_QUEUE_QUALIFED_PREFIX + PacketImpl.OLD_TEMP_QUEUE_PREFIX); public static final SimpleString OLD_TOPIC_QUALIFIED_PREFIX = SimpleString.toSimpleString(ActiveMQDestination.TOPIC_QUALIFIED_PREFIX + PacketImpl.OLD_TOPIC_PREFIX); public static final SimpleString OLD_TEMP_TOPIC_QUALIFED_PREFIX = SimpleString.toSimpleString(ActiveMQDestination.TEMP_TOPIC_QUALIFED_PREFIX + PacketImpl.OLD_TEMP_TOPIC_PREFIX); public static Map coreMaptoJMSMap(final Map coreMessage) { Map jmsMessage = new HashMap<>(); String deliveryMode = (Boolean) coreMessage.get("durable") ? "PERSISTENT" : "NON_PERSISTENT"; int priority = (Byte) coreMessage.get("priority"); long timestamp = (Long) coreMessage.get("timestamp"); long expiration = (Long) coreMessage.get("expiration"); jmsMessage.put("JMSPriority", priority); jmsMessage.put("JMSTimestamp", timestamp); jmsMessage.put("JMSExpiration", expiration); jmsMessage.put("JMSDeliveryMode", deliveryMode); for (Map.Entry entry : coreMessage.entrySet()) { if (entry.getKey().equals("type") || entry.getKey().equals("durable") || entry.getKey().equals("expiration") || entry.getKey().equals("timestamp") || entry.getKey().equals("priority")) { // Ignore } else if (entry.getKey().equals("userID")) { jmsMessage.put("JMSMessageID", entry.getValue().toString()); } else { Object value = entry.getValue(); if (value instanceof SimpleString) { jmsMessage.put(entry.getKey(), value.toString()); } else { jmsMessage.put(entry.getKey(), value); } } } return jmsMessage; } public static CompositeData coreCompositeTypeToJMSCompositeType(CompositeDataSupport data) throws Exception { CompositeData jmsdata = new CompositeDataSupport(data.getCompositeType(), new HashMap()); return jmsdata; } private static final HashSet reservedIdentifiers = new HashSet<>(); static { ActiveMQMessage.reservedIdentifiers.add("NULL"); ActiveMQMessage.reservedIdentifiers.add("TRUE"); ActiveMQMessage.reservedIdentifiers.add("FALSE"); ActiveMQMessage.reservedIdentifiers.add("NOT"); ActiveMQMessage.reservedIdentifiers.add("AND"); ActiveMQMessage.reservedIdentifiers.add("OR"); ActiveMQMessage.reservedIdentifiers.add("BETWEEN"); ActiveMQMessage.reservedIdentifiers.add("LIKE"); ActiveMQMessage.reservedIdentifiers.add("IN"); ActiveMQMessage.reservedIdentifiers.add("IS"); ActiveMQMessage.reservedIdentifiers.add("ESCAPE"); } public static ActiveMQMessage createMessage(final ClientMessage message, final ClientSession session) { return createMessage(message, session, null); } public static ActiveMQMessage createMessage(final ClientMessage message, final ClientSession session, final ConnectionFactoryOptions options) { int type = message.getType(); ActiveMQMessage msg; switch (type) { case ActiveMQMessage.TYPE: { // 0 msg = new ActiveMQMessage(message, session); break; } case ActiveMQBytesMessage.TYPE: { // 4 msg = new ActiveMQBytesMessage(message, session); break; } case ActiveMQMapMessage.TYPE: { // 5 msg = new ActiveMQMapMessage(message, session); break; } case ActiveMQObjectMessage.TYPE: { msg = new ActiveMQObjectMessage(message, session, options); break; } case ActiveMQStreamMessage.TYPE: { // 6 msg = new ActiveMQStreamMessage(message, session); break; } case ActiveMQTextMessage.TYPE: { // 3 msg = new ActiveMQTextMessage(message, session); break; } default: { throw new JMSRuntimeException("Invalid message type " + type); } } return msg; } // The underlying message protected ClientMessage message; private ClientSession session; // Read-only? protected boolean readOnly; // Properties read-only? protected boolean propertiesReadOnly; // Cache it private Destination dest; // Cache it private String msgID; // Cache it protected Destination replyTo; // Cache it private String jmsCorrelationID; // Cache it private String jmsType; private boolean individualAck; private boolean clientAck; private long jmsDeliveryTime; /* * Create a new message prior to sending */ protected ActiveMQMessage(final byte type, final ClientSession session) { message = session.createMessage(type, true, 0, System.currentTimeMillis(), (byte) 4); } protected ActiveMQMessage(final ClientSession session) { this(ActiveMQMessage.TYPE, session); } /** * Constructor for when receiving a message from the server */ public ActiveMQMessage(final ClientMessage message, final ClientSession session) { checkNotNull(message); this.message = message; readOnly = true; propertiesReadOnly = true; this.session = session; } /* * A constructor that takes a foreign message */ public ActiveMQMessage(final Message foreign, final ClientSession session) throws JMSException { this(foreign, ActiveMQMessage.TYPE, session); } public ActiveMQMessage() { } protected ActiveMQMessage(final Message foreign, final byte type, final ClientSession session) throws JMSException { this(type, session); setJMSTimestamp(foreign.getJMSTimestamp()); String value = System.getProperty(ActiveMQJMSConstants.JMS_ACTIVEMQ_ENABLE_BYTE_ARRAY_JMS_CORRELATION_ID_PROPERTY_NAME); boolean supportBytesId = !"false".equals(value); if (supportBytesId) { try { byte[] corrIDBytes = foreign.getJMSCorrelationIDAsBytes(); setJMSCorrelationIDAsBytes(corrIDBytes); } catch (JMSException e) { // specified as String String corrIDString = foreign.getJMSCorrelationID(); if (corrIDString != null) { setJMSCorrelationID(corrIDString); } } } else { // Some providers, like WSMQ do automatic conversions between native byte[] correlation id // and String correlation id. This makes it impossible for ActiveMQ Artemis to guarantee to return the correct // type as set by the user // So we allow the behaviour to be overridden by a system property // https://jira.jboss.org/jira/browse/HORNETQ-356 // https://jira.jboss.org/jira/browse/HORNETQ-332 String corrIDString = foreign.getJMSCorrelationID(); if (corrIDString != null) { setJMSCorrelationID(corrIDString); } } setJMSReplyTo(foreign.getJMSReplyTo()); setJMSDestination(foreign.getJMSDestination()); setJMSDeliveryMode(foreign.getJMSDeliveryMode()); setJMSExpiration(foreign.getJMSExpiration()); setJMSPriority(foreign.getJMSPriority()); setJMSType(foreign.getJMSType()); // We can't avoid a cast warning here since getPropertyNames() is on the JMS API for (Enumeration props = foreign.getPropertyNames(); props.hasMoreElements(); ) { String name = props.nextElement(); Object prop = foreign.getObjectProperty(name); setObjectProperty(name, prop); } } // javax.jmx.Message implementation ------------------------------ @Override public String getJMSMessageID() { if (msgID == null) { UUID uid = (UUID)message.getUserID(); msgID = uid == null ? null : "ID:" + uid.toString(); } return msgID; } @Override public void setJMSMessageID(final String jmsMessageID) throws JMSException { if (jmsMessageID != null && !jmsMessageID.startsWith("ID:")) { throw new JMSException("JMSMessageID must start with ID:"); } message.setUserID(null); msgID = jmsMessageID; } @Override public long getJMSTimestamp() throws JMSException { return message.getTimestamp(); } @Override public void setJMSTimestamp(final long timestamp) throws JMSException { message.setTimestamp(timestamp); } @Override public byte[] getJMSCorrelationIDAsBytes() throws JMSException { return MessageUtil.getJMSCorrelationIDAsBytes(message); } @Override public void setJMSCorrelationIDAsBytes(final byte[] correlationID) throws JMSException { try { MessageUtil.setJMSCorrelationIDAsBytes(message, correlationID); } catch (ActiveMQException e) { JMSException ex = new JMSException(e.getMessage()); ex.initCause(e); throw ex; } } @Override public void setJMSCorrelationID(final String correlationID) throws JMSException { MessageUtil.setJMSCorrelationID(message, correlationID); jmsCorrelationID = correlationID; } @Override public String getJMSCorrelationID() throws JMSException { if (jmsCorrelationID == null) { jmsCorrelationID = MessageUtil.getJMSCorrelationID(message); } return jmsCorrelationID; } @Override public Destination getJMSReplyTo() throws JMSException { if (replyTo == null) { SimpleString repl = MessageUtil.getJMSReplyTo(message); if (repl != null) { replyTo = ActiveMQDestination.fromPrefixedName(repl.toString()); } } return replyTo; } @Override public void setJMSReplyTo(final Destination dest) throws JMSException { if (dest == null) { MessageUtil.setJMSReplyTo(message, (String) null); replyTo = null; } else { if (dest instanceof ActiveMQDestination == false) { throw new InvalidDestinationException("Foreign destination " + dest); } String prefix = prefixOf(dest); ActiveMQDestination jbd = (ActiveMQDestination) dest; MessageUtil.setJMSReplyTo(message, prefix + jbd.getAddress()); replyTo = jbd; } } public static String prefixOf(Destination dest) { String prefix = ""; if (dest instanceof ActiveMQTemporaryQueue) { prefix = TEMP_QUEUE_QUALIFED_PREFIX; } else if (dest instanceof ActiveMQQueue) { prefix = QUEUE_QUALIFIED_PREFIX; } else if (dest instanceof ActiveMQTemporaryTopic) { prefix = TEMP_TOPIC_QUALIFED_PREFIX; } else if (dest instanceof ActiveMQTopic) { prefix = TOPIC_QUALIFIED_PREFIX; } return prefix; } protected SimpleString checkPrefix(SimpleString address) { return address; } protected SimpleString checkPrefixStr(SimpleString address) { return address; } @Override public Destination getJMSDestination() throws JMSException { if (dest == null) { SimpleString address = message.getAddressSimpleString(); SimpleString changedAddress = checkPrefix(address); RoutingType routingType = message.getRoutingType(); dest = ActiveMQDestination.createDestination(routingType, address); if (changedAddress != null && dest != null) { ((ActiveMQDestination) dest).setName(changedAddress.toString()); } } return dest; } @Override public void setJMSDestination(final Destination destination) throws JMSException { dest = destination; } @Override public int getJMSDeliveryMode() throws JMSException { return message.isDurable() ? DeliveryMode.PERSISTENT : DeliveryMode.NON_PERSISTENT; } @Override public void setJMSDeliveryMode(final int deliveryMode) throws JMSException { if (deliveryMode == DeliveryMode.PERSISTENT) { message.setDurable(true); } else if (deliveryMode == DeliveryMode.NON_PERSISTENT) { message.setDurable(false); } else { throw ActiveMQJMSClientBundle.BUNDLE.illegalDeliveryMode(deliveryMode); } } @Override public boolean getJMSRedelivered() throws JMSException { return message.getDeliveryCount() > 1; } @Override public void setJMSRedelivered(final boolean redelivered) throws JMSException { if (!redelivered) { message.setDeliveryCount(1); } else { if (message.getDeliveryCount() > 1) { // do nothing } else { message.setDeliveryCount(2); } } } @Override public void setJMSType(final String type) throws JMSException { if (type != null) { MessageUtil.setJMSType(message, type); jmsType = type; } } @Override public String getJMSType() throws JMSException { if (jmsType == null) { jmsType = MessageUtil.getJMSType(message); } return jmsType; } @Override public long getJMSExpiration() throws JMSException { return message.getExpiration(); } @Override public void setJMSExpiration(final long expiration) throws JMSException { message.setExpiration(expiration); } @Override public int getJMSPriority() throws JMSException { return message.getPriority(); } @Override public void setJMSPriority(final int priority) throws JMSException { checkPriority(priority); message.setPriority((byte) priority); } @Override public void clearProperties() throws JMSException { MessageUtil.clearProperties(message); propertiesReadOnly = false; } @Override public void clearBody() throws JMSException { readOnly = false; } @Override public boolean propertyExists(final String name) throws JMSException { return MessageUtil.propertyExists(message, name); } @Override public boolean getBooleanProperty(final String name) throws JMSException { try { return message.getBooleanProperty(name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public byte getByteProperty(final String name) throws JMSException { try { return message.getByteProperty(name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public short getShortProperty(final String name) throws JMSException { try { return message.getShortProperty(name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public int getIntProperty(final String name) throws JMSException { try { if (MessageUtil.JMSXDELIVERYCOUNT.equals(name)) { return message.getDeliveryCount(); } else { return MessageUtil.getIntProperty(message, name); } } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public long getLongProperty(final String name) throws JMSException { try { if (MessageUtil.JMSXDELIVERYCOUNT.equals(name)) { return message.getDeliveryCount(); } else { return MessageUtil.getLongProperty(message, name); } } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public float getFloatProperty(final String name) throws JMSException { try { return message.getFloatProperty(name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public double getDoubleProperty(final String name) throws JMSException { try { return message.getDoubleProperty(name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public String getStringProperty(final String name) throws JMSException { if (MessageUtil.JMSXDELIVERYCOUNT.equals(name)) { return String.valueOf(message.getDeliveryCount()); } try { return MessageUtil.getStringProperty(message, name); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public Object getObjectProperty(final String name) throws JMSException { if (MessageUtil.JMSXDELIVERYCOUNT.equals(name)) { return message.getDeliveryCount(); } return MessageUtil.getObjectProperty(message, name); } @Override public Enumeration getPropertyNames() throws JMSException { return Collections.enumeration(MessageUtil.getPropertyNames(message)); } @Override public void setBooleanProperty(final String name, final boolean value) throws JMSException { checkProperty(name); message.putBooleanProperty(name, value); } @Override public void setByteProperty(final String name, final byte value) throws JMSException { checkProperty(name); message.putByteProperty(name, value); } @Override public void setShortProperty(final String name, final short value) throws JMSException { checkProperty(name); message.putShortProperty(name, value); } @Override public void setIntProperty(final String name, final int value) throws JMSException { checkProperty(name); MessageUtil.setIntProperty(message, name, value); } @Override public void setLongProperty(final String name, final long value) throws JMSException { checkProperty(name); MessageUtil.setLongProperty(message, name, value); } @Override public void setFloatProperty(final String name, final float value) throws JMSException { checkProperty(name); message.putFloatProperty(name, value); } @Override public void setDoubleProperty(final String name, final double value) throws JMSException { checkProperty(name); message.putDoubleProperty(name, value); } @Override public void setStringProperty(final String name, final String value) throws JMSException { checkProperty(name); MessageUtil.setStringProperty(message, name, value); } @Override public void setObjectProperty(final String name, final Object value) throws JMSException { if (ActiveMQJMSConstants.JMS_ACTIVEMQ_OUTPUT_STREAM.equals(name)) { setOutputStream((OutputStream) value); return; } else if (ActiveMQJMSConstants.JMS_ACTIVEMQ_SAVE_STREAM.equals(name)) { saveToOutputStream((OutputStream) value); return; } if (ActiveMQJMSConstants.JMS_ACTIVEMQ_INPUT_STREAM.equals(name)) { setInputStream((InputStream) value); return; } checkProperty(name); try { MessageUtil.setObjectProperty(message, name, value); } catch (ActiveMQPropertyConversionException e) { throw new MessageFormatException(e.getMessage()); } } @Override public void acknowledge() throws JMSException { if (session != null) { try { if (session.isClosed()) { throw ActiveMQClientMessageBundle.BUNDLE.sessionClosed(); } if (individualAck) { message.individualAcknowledge(); } if (clientAck || individualAck) { session.commit(session.isBlockOnAcknowledge()); } } catch (ActiveMQException e) { throw JMSExceptionHelper.convertFromActiveMQException(e); } } } @Override public long getJMSDeliveryTime() throws JMSException { return message.getScheduledDeliveryTime(); } @Override public void setJMSDeliveryTime(long deliveryTime) throws JMSException { message.setScheduledDeliveryTime(deliveryTime); } @Override public T getBody(Class c) throws JMSException { if (isBodyAssignableTo(c)) { return getBodyInternal(c); } else if (hasNoBody()) { return null; } // XXX HORNETQ-1209 Do we need translations here? throw new MessageFormatException("Body not assignable to " + c); } @SuppressWarnings("unchecked") protected T getBodyInternal(Class c) throws MessageFormatException { InputStream is = ((ClientMessageInternal) message).getBodyInputStream(); try { ObjectInputStream ois = new ObjectInputStream(is); return (T) ois.readObject(); } catch (Exception e) { throw new MessageFormatException(e.getMessage()); } } @Override public boolean isBodyAssignableTo(Class c) { /** * From the specs: *

* If the message is a {@code Message} (but not one of its subtypes) then this method will * return true irrespective of the value of this parameter. */ return true; } /** * Helper method for {@link #isBodyAssignableTo(Class)}. * * @return true if the message has no body. */ protected boolean hasNoBody() { return message.getBodySize() == 0; } public void setIndividualAcknowledge() { this.individualAck = true; } public void setClientAcknowledge() { this.clientAck = true; } public void resetMessageID(final String newMsgID) { this.msgID = newMsgID; } public ClientMessage getCoreMessage() { return message; } public void doBeforeSend() throws Exception { message.getBodyBuffer().resetReaderIndex(); } public void checkBuffer() { message.getBodyBuffer(); } public void doBeforeReceive() throws ActiveMQException { message.checkCompletion(); ActiveMQBuffer body = message.getBodyBuffer(); if (body != null) { body.resetReaderIndex(); } } public byte getType() { return ActiveMQMessage.TYPE; } public void setInputStream(final InputStream input) throws JMSException { checkStream(); if (readOnly) { throw ActiveMQJMSClientBundle.BUNDLE.messageNotWritable(); } message.setBodyInputStream(input); } public void setOutputStream(final OutputStream output) throws JMSException { checkStream(); if (!readOnly) { throw new IllegalStateException("OutputStream property is only valid on received messages"); } try { message.setOutputStream(output); } catch (ActiveMQException e) { throw JMSExceptionHelper.convertFromActiveMQException(e); } } public void saveToOutputStream(final OutputStream output) throws JMSException { checkStream(); if (!readOnly) { throw new IllegalStateException("OutputStream property is only valid on received messages"); } try { message.saveToOutputStream(output); } catch (ActiveMQException e) { throw JMSExceptionHelper.convertFromActiveMQException(e); } } public boolean waitCompletionOnStream(final long timeWait) throws JMSException { checkStream(); try { return message.waitOutputStreamCompletion(timeWait); } catch (ActiveMQException e) { throw JMSExceptionHelper.convertFromActiveMQException(e); } } @Override public String toString() { StringBuffer sb = new StringBuffer("ActiveMQMessage["); if (message != null) { sb.append(getJMSMessageID()); sb.append("]:"); sb.append(message.isDurable() ? "PERSISTENT" : "NON-PERSISTENT"); sb.append("/" + message.toString()); } else { sb.append("]"); } return sb.toString(); } protected void checkWrite() throws JMSException { if (readOnly) { throw ActiveMQJMSClientBundle.BUNDLE.messageNotWritable(); } } protected void checkRead() throws JMSException { if (!readOnly) { throw ActiveMQJMSClientBundle.BUNDLE.messageNotReadable(); } } private void checkStream() throws JMSException { if (!(message.getType() == ActiveMQBytesMessage.TYPE || message.getType() == ActiveMQStreamMessage.TYPE)) { throw ActiveMQJMSClientBundle.BUNDLE.onlyValidForByteOrStreamMessages(); } } private void checkProperty(final String name) throws JMSException { if (propertiesReadOnly) { if (name != null && name.equals(ActiveMQJMSConstants.JMS_ACTIVEMQ_INPUT_STREAM)) { throw new MessageNotWriteableException("You cannot set the Input Stream on received messages. Did you mean " + ActiveMQJMSConstants.JMS_ACTIVEMQ_OUTPUT_STREAM + " or " + ActiveMQJMSConstants.JMS_ACTIVEMQ_SAVE_STREAM + "?"); } else { throw ActiveMQJMSClientBundle.BUNDLE.messageNotWritable(); } } if (name == null) { throw ActiveMQJMSClientBundle.BUNDLE.nullArgumentNotAllowed("property"); } if (name.equals("")) { throw new IllegalArgumentException("The name of a property must not be an empty String."); } if (!isValidJavaIdentifier(name)) { throw ActiveMQJMSClientBundle.BUNDLE.invalidJavaIdentifier(name); } if (ActiveMQMessage.reservedIdentifiers.contains(name)) { throw new JMSRuntimeException("The property name '" + name + "' is reserved due to selector syntax."); } if (name.startsWith("JMS_ACTIVEMQ")) { throw new JMSRuntimeException("The property name '" + name + "' is illegal since it starts with JMS_ACTIVEMQ"); } } private boolean isValidJavaIdentifier(final String s) { if (s == null || s.length() == 0) { return false; } char[] c = s.toCharArray(); if (!Character.isJavaIdentifierStart(c[0])) { return false; } for (int i = 1; i < c.length; i++) { if (!Character.isJavaIdentifierPart(c[i])) { return false; } } return true; } private void checkPriority(final int priority) throws JMSException { if (priority < 0 || priority > 9) { throw new JMSException(priority + " is not valid: priority must be between 0 and 9"); } } }





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