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/* Copyright 2001-2002, Adobe Systems Incorporated */
/* All Rights Reserved. */
/* */
/* NOTICE: All information contained herein is, and remains the property */
/* of Adobe Systems Incorporated and its suppliers, if any. The */
/* intellectual and technical concepts contained herein are proprietary */
/* to Adobe Systems Incorporated and its suppliers and may be covered by */
/* U.S. and Foreign Patents, patents in process, and are protected by */
/* trade secret or copyright law. Dissemination of this information or */
/* reproduction of this material is strictly forbidden unless prior */
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package com.adobe.versioncue.nativecomm.msg;
import java.nio.ByteBuffer;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
/**
* A Dictionary mapping NCType keys to NCType objects.
*
* Note that this class is **NOT** Thread-safe in its current form.
*
* @author Timo Naroska
* @version $Revision: #1 $
*/
public final class NCMap extends NCType
{
// --------------------------------------------------------------------------- Private Variables
/** The underlying Map object */
private final HashMap map;
// -------------------------------------------------------------------------- Public Constructor
/** Default constructor */
public NCMap()
{
map = new HashMap();
}
// ------------------------------------------------------------------------------ Public Methods
/**
* Returns the number of entries in the NCMap.
*
* @return number of entries in the NCMap.
*/
public int size()
{
return map.size();
}
/**
* Returns true if the NCMap is empty
*
* @return true if the NCMap is empty
*/
public boolean isEmtpy()
{
return map.isEmpty();
}
/**
* Returns an iterator over the mappings in this IDicitonary. The elements
* are returned in no particular order.
*
* @return a Iterator containing
* java.util.Map.Entry Objects
*/
public Iterator> entries()
{
return map.entrySet().iterator();
}
/**
* Returns a set of Map.Entry objects.
*
* @return set of Map.Entry objects.
*/
public Set> entrySet()
{
return map.entrySet();
}
/**
* Returns true if this NCMap contains a mapping for the specified key.
*
* @param key - key to check
* @return true if this NCMap contains a mapping for the specified key.
*/
public boolean containsKey(NCType key)
{
return map.containsKey(key);
}
/**
* Returns true if this NCMap contains a mapping for the specified key.
*
* @param key - key to check
* @return true if this NCMap contains a mapping for the specified key.
*/
public boolean containsKey(String key)
{
return map.containsKey(new NCString(key));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(NCType key, NCType value)
{
// == PRE-CONDITION ========================================================================
if (key == null)
throw new NullPointerException("key can't be null"); //$NON-NLS-1$
if (value == null)
throw new NullPointerException("value can't be null"); //$NON-NLS-1$
// == PRE-CONDITION ========================================================================
map.put(key, value);
return this;
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, NCType value)
{
return put(new NCString(key), value);
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, INCExternalizable value)
{
return put(new NCString(key), value.externalize());
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, String value)
{
return put(new NCString(key), new NCString(value));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, boolean value)
{
return put(new NCString(key), value ? NCBool.TRUE : NCBool.FALSE);
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, int value)
{
return put(new NCString(key), new NCInt(value));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, long value)
{
return put(new NCString(key), new NCLong(value));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, double value)
{
return put(new NCString(key), new NCDouble(value));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, Date value)
{
return put(new NCString(key), new NCDate(value));
}
/** Add a key/value pair to this map.
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, byte[] value)
{
return put(new NCString(key), new NCData(value));
}
/**
* Add a key/value pair to this map.
*
* @param key the key
* @param value the value
* @return the NCMap
*/
public NCMap put(String key, ByteBuffer value)
{
return put(new NCString(key), new NCData(value));
}
/**
* Returns the NCType object associated with the specified key. Returns null
* if the NCMap contains no entry for this key.
*
* @param key key to retrieve
* @return value associated with the specified key; null if the key has no
* value associated
*/
public NCType get(NCType key)
{
return map.get(key);
}
/**
* Returns the NCType object associated with the specified key. Returns null
* if the NCMap contains no entry for this key.
*
* @param key key to retrieve
* @return value associated with the specified key; null if the key has no
* value associated
*/
public NCType get(String key)
{
return get(new NCString(key));
}
/**
* Returns the String value associated with the specified key.
*
* @param key the key String
* @return String value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public String getString(String key) throws BadMessageException
{
NCString value = (NCString) checkedGet(key, NCString.class);
return value.string();
}
/**
* Returns the boolean value associated with the specified key.
*
* @param key the key String
* @return boolean value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public boolean getBool(String key) throws BadMessageException
{
NCBool value = (NCBool) checkedGet(key, NCBool.class);
return value.booleanValue();
}
/**
* Returns the double value associated with the specified key.
*
* @param key the key String
* @return double value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public double getDouble(String key) throws BadMessageException
{
NCNumber value = (NCNumber) checkedGet(key, NCNumber.class);
return value.doubleValue();
}
/**
* Returns the int value associated with the specified key.
*
* @param key the key String
* @return int value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public int getInt(String key) throws BadMessageException
{
NCNumber value = (NCNumber) checkedGet(key, NCNumber.class);
return value.intValue();
}
/**
* Returns the long value associated with the specified key.
*
* @param key the key String
* @return long value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public long getLong(String key) throws BadMessageException
{
NCNumber value = (NCNumber) checkedGet(key, NCNumber.class);
return value.longValue();
}
/** Returns the date value associated with the specified key.
* @param key the key String
* @return date value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public Date getDate(String key) throws BadMessageException
{
NCDate value = (NCDate) checkedGet(key, NCDate.class);
return value.date();
}
/** Returns the byte[] value associated with the specified key.
* @param key the key String
* @return byte[] value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public byte[] getByteArray(String key) throws BadMessageException
{
NCData value = (NCData) checkedGet(key, NCData.class);
return value.byteArray();
}
/**
* Returns the ByteBuffer value associated with the specified key.
*
* @param key the key String
* @return ByteBuffer value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public ByteBuffer getBytes(String key) throws BadMessageException
{
NCData value = (NCData) checkedGet(key, NCData.class);
return value.bytes();
}
/**
* Returns the NCList value associated with the specified key.
*
* @param key the key String
* @return NCList value
* @throws BadMessageException if the requested value is not present or of a bad type
*/
public NCList getList(String key) throws BadMessageException
{
return (NCList) checkedGet(key, NCList.class);
}
/**
* Returns the NCMap value associated with the specified key.
*
* @param key the key String
* @return NCMap value
* @throws BadMessageException
* if the associated value is not present or not of the correct
* type
*/
public NCMap getMap(String key) throws BadMessageException
{
return (NCMap) checkedGet(key, NCMap.class);
}
/**
* Removes the mapping for this key from this NCMap if it is present.
*
* @param key key whose associated NCType object is to be removed
* @return previous NCType object associated with the specified
* key, or null if there was no mapping for the key
*/
public NCType remove(NCType key)
{
return map.remove(key);
}
/**
* Removes the mapping for this key from this NCMap if it is present.
*
* @param key key whose associated NCType object is to be removed
* @return previous NCType object associated with the specified
* key, or null if there was no mapping for the key
*/
public NCType remove(String key)
{
return remove(new NCString(key));
}
/**
* Removes all entries from this NCMap object.
*
* @return the NCMap
*/
public NCMap clear()
{
map.clear();
return this;
}
// ---------------------------------------------------------------------------- NCType Overrides
@Override
public int getType()
{
return TYPE_MAP;
}
// ------------------------------------------------------------------ java.lang.Object Overrides
@Override
public boolean equals(Object other)
{
if (other == this)
{
return true;
}
if (other instanceof NCMap)
{
final NCMap otherDict = (NCMap) other;
return map.equals(otherDict.map);
}
return false;
}
@Override
public String toString()
{
StringBuilder buf = new StringBuilder(128);
String nl = System.getProperty("line.separator");
buf.append(getClass().getSimpleName()).append(nl).append('{').append(nl);
for (Entry entry : map.entrySet())
{
buf.append(" ").append(entry.getKey()).append(": ")
.append(entry.getValue()).append(nl);
}
buf.append('}');
return buf.toString();
}
@Override
public int hashCode()
{
return map.hashCode();
}
// ----------------------------------------------------------------------------- Private Methods
/**
* Checks the type of and returns the value associated with key.
*
* @param key the key
* @param expectedType expected value type
* @return checked value
* @throws BadMessageException if no value is present or if a value is of a bad type
*/
private NCType checkedGet(String key, Class expectedType) throws BadMessageException
{
NCType value = get(key);
if (!expectedType.isInstance(value))
{
throw new BadMessageException("Expected <" + expectedType + "> for key '" + key +
"'. Actual value: " + value);
}
return value;
}
}
