mirror of
https://github.com/Alfresco/alfresco-community-repo.git
synced 2025-06-09 17:45:10 +00:00
Loosened cache invalidation for write operations so that layered/write lookups are not discarded. Changed direct buffer copies to use System.arraycopy. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@4447 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
114 lines
2.7 KiB
Java
114 lines
2.7 KiB
Java
/*
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* Copyright (C) 2006 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package org.alfresco.repo.avm;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Wrapper around AVMRemote stream reading.
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* @author britt
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*/
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public class AVMRemoteInputStream extends InputStream
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{
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/**
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* The AVMRemote reference.
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*/
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private AVMRemote fAVMRemote;
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/**
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* The handle to the input stream.
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*/
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private String fHandle;
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/**
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* Construct one.
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* @param handle The handle returned by getInputStream();
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* @param remote The AVMRemote instance.
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*/
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public AVMRemoteInputStream(String handle, AVMRemote remote)
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{
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fHandle = handle;
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fAVMRemote = remote;
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}
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/**
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* Read in a single byte.
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* @return The byte as 0-255 or -1 for eof.
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*/
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@Override
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public int read() throws IOException
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{
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try
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{
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byte [] buff = fAVMRemote.readInput(fHandle, 1);
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if (buff.length == 0)
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{
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return -1;
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}
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return ((int)buff[0]) & 0xff;
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}
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catch (Exception e)
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{
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throw new IOException("Remote I/O Error.");
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}
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}
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/**
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* Read a buffer of bytes.
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* @param b The buffer into which to put the bytes.
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* @param off The offset into the buffer.
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* @param len The number of bytes to read.
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* @return The actual number of bytes read or -1 on eof.
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*/
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@Override
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public int read(byte[] b, int off, int len) throws IOException
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{
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try
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{
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byte [] buff = fAVMRemote.readInput(fHandle, len);
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if (buff.length == 0)
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{
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return -1;
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}
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System.arraycopy(buff, 0, b, off, buff.length);
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return buff.length;
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}
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catch (Exception e)
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{
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throw new IOException("Remote I/O Error.");
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}
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}
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/**
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* Close the underlying AVMRemote handle.
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*/
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@Override
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public void close() throws IOException
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{
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try
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{
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fAVMRemote.closeInputHandle(fHandle);
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}
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catch (Exception e)
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{
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throw new IOException("Remote Error closing input stream.");
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}
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}
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}
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