001: /*
002: * Copyright (c) 2001-2004 Caucho Technology, Inc. All rights reserved.
003: *
004: * The Apache Software License, Version 1.1
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * 1. Redistributions of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * 2. Redistributions in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * 3. The end-user documentation included with the redistribution, if
019: * any, must include the following acknowlegement:
020: * "This product includes software developed by the
021: * Caucho Technology (http://www.caucho.com/)."
022: * Alternately, this acknowlegement may appear in the software itself,
023: * if and wherever such third-party acknowlegements normally appear.
024: *
025: * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
026: * endorse or promote products derived from this software without prior
027: * written permission. For written permission, please contact
028: * info@caucho.com.
029: *
030: * 5. Products derived from this software may not be called "Resin"
031: * nor may "Resin" appear in their names without prior written
032: * permission of Caucho Technology.
033: *
034: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
035: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
036: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
037: * DISCLAIMED. IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
038: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
039: * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
040: * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
041: * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
042: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
043: * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
044: * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
045: *
046: * @author Scott Ferguson
047: */
048:
049: package com.caucho.hessian.io;
050:
051: import java.io.IOException;
052: import java.lang.reflect.Array;
053: import java.util.ArrayList;
054:
055: /**
056: * Deserializing a Java array
057: */
058: public class ArrayDeserializer extends AbstractListDeserializer {
059: private Class _componentType;
060: private Class _type;
061:
062: public ArrayDeserializer(Class componentType) {
063: _componentType = componentType;
064:
065: if (_componentType != null) {
066: try {
067: _type = Array.newInstance(_componentType, 0).getClass();
068: } catch (Exception e) {
069: }
070: }
071:
072: if (_type == null)
073: _type = Object[].class;
074: }
075:
076: public Class getType() {
077: return _type;
078: }
079:
080: /**
081: * Reads the array.
082: */
083: public Object readList(AbstractHessianInput in, int length)
084: throws IOException {
085: if (length >= 0) {
086: Object[] data = createArray(length);
087:
088: in.addRef(data);
089:
090: if (_componentType != null) {
091: for (int i = 0; i < data.length; i++)
092: data[i] = in.readObject(_componentType);
093: } else {
094: for (int i = 0; i < data.length; i++)
095: data[i] = in.readObject();
096: }
097:
098: in.readListEnd();
099:
100: return data;
101: } else {
102: ArrayList list = new ArrayList();
103:
104: in.addRef(list);
105:
106: if (_componentType != null) {
107: while (!in.isEnd())
108: list.add(in.readObject(_componentType));
109: } else {
110: while (!in.isEnd())
111: list.add(in.readObject());
112: }
113:
114: in.readListEnd();
115:
116: Object[] data = createArray(list.size());
117: for (int i = 0; i < data.length; i++)
118: data[i] = list.get(i);
119:
120: return data;
121: }
122: }
123:
124: /**
125: * Reads the array.
126: */
127: public Object readLengthList(AbstractHessianInput in, int length)
128: throws IOException {
129: Object[] data = createArray(length);
130:
131: in.addRef(data);
132:
133: if (_componentType != null) {
134: for (int i = 0; i < data.length; i++)
135: data[i] = in.readObject(_componentType);
136: } else {
137: for (int i = 0; i < data.length; i++)
138: data[i] = in.readObject();
139: }
140:
141: return data;
142: }
143:
144: protected Object[] createArray(int length) {
145: if (_componentType != null)
146: return (Object[]) Array.newInstance(_componentType, length);
147: else
148: return new Object[length];
149: }
150:
151: public String toString() {
152: return "ArrayDeserializer[" + _componentType + "]";
153: }
154: }
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