| /* |
| * |
| * 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.qpid.server.protocol.v1_0.codec; |
| |
| import org.apache.qpid.server.protocol.v1_0.type.AmqpErrorException; |
| import org.apache.qpid.bytebuffer.QpidByteBuffer; |
| |
| import java.nio.CharBuffer; |
| import java.nio.charset.Charset; |
| |
| public class StringTypeConstructor extends VariableWidthTypeConstructor |
| { |
| private Charset _charSet; |
| |
| |
| public static StringTypeConstructor getInstance(int i, Charset c) |
| { |
| return new StringTypeConstructor(i, c); |
| } |
| |
| |
| private StringTypeConstructor(int size, Charset c) |
| { |
| super(size); |
| _charSet = c; |
| } |
| |
| @Override |
| public Object construct(final QpidByteBuffer in, boolean isCopy, ValueHandler handler) throws AmqpErrorException |
| { |
| int size; |
| |
| if(getSize() == 1) |
| { |
| size = in.get() & 0xFF; |
| } |
| else |
| { |
| size = in.getInt(); |
| } |
| |
| int origPosition = in.position(); |
| |
| QpidByteBuffer dup = in.duplicate(); |
| try |
| { |
| dup.limit(dup.position()+size); |
| CharBuffer charBuf = dup.decode(_charSet); |
| |
| String str = charBuf.toString(); |
| |
| in.position(origPosition + size); |
| |
| return str; |
| } |
| catch(IllegalArgumentException e) |
| { |
| throw new IllegalArgumentException("position: " + dup.position() + "size: " + size + " capacity: " + dup.capacity()); |
| } |
| finally |
| { |
| dup.dispose(); |
| } |
| } |
| |
| } |