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 "Burlap", "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:
053: /**
054: * Deserializing an object.
055: */
056: abstract public class AbstractDeserializer implements Deserializer {
057: public Class getType() {
058: return Object.class;
059: }
060:
061: public Object readObject(AbstractHessianInput in)
062: throws IOException {
063: Object obj = in.readObject();
064:
065: String className = getClass().getName();
066:
067: if (obj != null)
068: throw error(className + ": unexpected object "
069: + obj.getClass().getName() + " (" + obj + ")");
070: else
071: throw error(className + ": unexpected null value");
072: }
073:
074: public Object readList(AbstractHessianInput in, int length)
075: throws IOException {
076: throw new UnsupportedOperationException(String.valueOf(this ));
077: }
078:
079: public Object readLengthList(AbstractHessianInput in, int length)
080: throws IOException {
081: throw new UnsupportedOperationException(String.valueOf(this ));
082: }
083:
084: public Object readMap(AbstractHessianInput in) throws IOException {
085: Object obj = in.readObject();
086:
087: String className = getClass().getName();
088:
089: if (obj != null)
090: throw error(className + ": unexpected object "
091: + obj.getClass().getName() + " (" + obj + ")");
092: else
093: throw error(className + ": unexpected null value");
094: }
095:
096: public Object readObject(AbstractHessianInput in,
097: String[] fieldNames) throws IOException {
098: throw new UnsupportedOperationException(String.valueOf(this ));
099: }
100:
101: protected HessianProtocolException error(String msg) {
102: return new HessianProtocolException(msg);
103: }
104:
105: protected String codeName(int ch) {
106: if (ch < 0)
107: return "end of file";
108: else
109: return "0x" + Integer.toHexString(ch & 0xff);
110: }
111: }
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