| /* |
| * Copyright 2004,2005 The Apache Software Foundation. |
| * |
| * Licensed 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.axis2.transport.jms.iowrappers; |
| |
| import java.io.InputStream; |
| |
| import javax.jms.BytesMessage; |
| import javax.jms.JMSException; |
| import javax.jms.MessageEOFException; |
| |
| /** |
| * Input stream that reads data from a JMS {@link BytesMessage}. |
| * Note that since the current position in the message is managed by |
| * the underlying {@link BytesMessage} object, it is not possible to |
| * use several instances of this class operating on a single |
| * {@link BytesMessage} at the same time. |
| */ |
| public class BytesMessageInputStream extends InputStream { |
| private final BytesMessage message; |
| |
| public BytesMessageInputStream(BytesMessage message) { |
| this.message = message; |
| } |
| |
| @Override |
| public int read() throws JMSExceptionWrapper { |
| try { |
| return message.readByte() & 0xFF; |
| } catch (MessageEOFException ex) { |
| return -1; |
| } catch (JMSException ex) { |
| throw new JMSExceptionWrapper(ex); |
| } |
| } |
| |
| @Override |
| public int read(byte[] b, int off, int len) throws JMSExceptionWrapper { |
| if (off == 0) { |
| try { |
| return message.readBytes(b, len); |
| } catch (JMSException ex) { |
| throw new JMSExceptionWrapper(ex); |
| } |
| } else { |
| byte[] b2 = new byte[len]; |
| int c = read(b2); |
| if (c > 0) { |
| System.arraycopy(b2, 0, b, off, c); |
| } |
| return c; |
| } |
| } |
| |
| @Override |
| public int read(byte[] b) throws JMSExceptionWrapper { |
| try { |
| return message.readBytes(b); |
| } catch (JMSException ex) { |
| throw new JMSExceptionWrapper(ex); |
| } |
| } |
| } |