com.liferay.portal.template.CacheTemplateResource Maven / Gradle / Ivy
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Contains implementation for the portal services.
/**
* Copyright (c) 2000-2013 Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*/
package com.liferay.portal.template;
import com.liferay.portal.kernel.io.unsync.UnsyncCharArrayWriter;
import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
import com.liferay.portal.kernel.template.TemplateResource;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.Reader;
import java.util.concurrent.atomic.AtomicReference;
/**
* @author Tina Tian
*/
public class CacheTemplateResource implements TemplateResource {
/**
* The empty constructor is required by {@link java.io.Externalizable}. Do
* not use this for any other purpose.
*/
public CacheTemplateResource() {
}
public CacheTemplateResource(TemplateResource templateResource) {
if (templateResource == null) {
throw new IllegalArgumentException("Template resource is null");
}
_templateResource = templateResource;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof CacheTemplateResource)) {
return false;
}
CacheTemplateResource cacheTemplateResource =
(CacheTemplateResource)obj;
if (_templateResource.equals(cacheTemplateResource._templateResource)) {
return true;
}
return false;
}
public TemplateResource getInnerTemplateResource() {
return _templateResource;
}
@Override
public long getLastModified() {
return _lastModified;
}
@Override
public Reader getReader() throws IOException {
String templateContent = _templateContent.get();
if (templateContent != null) {
return new UnsyncStringReader(templateContent);
}
Reader reader = null;
try {
reader = _templateResource.getReader();
char[] buffer = new char[1024];
int result = -1;
UnsyncCharArrayWriter unsyncCharArrayWriter =
new UnsyncCharArrayWriter();
while ((result = reader.read(buffer)) != -1) {
unsyncCharArrayWriter.write(buffer, 0, result);
}
templateContent = unsyncCharArrayWriter.toString();
_templateContent.set(templateContent);
}
finally {
if (reader != null) {
reader.close();
}
}
return new UnsyncStringReader(templateContent);
}
@Override
public String getTemplateId() {
return _templateResource.getTemplateId();
}
@Override
public int hashCode() {
return _templateResource.hashCode();
}
@Override
public void readExternal(ObjectInput objectInput)
throws ClassNotFoundException, IOException {
_lastModified = objectInput.readLong();
_templateResource = (TemplateResource)objectInput.readObject();
}
@Override
public void writeExternal(ObjectOutput objectOutput) throws IOException {
objectOutput.writeLong(_lastModified);
objectOutput.writeObject(_templateResource);
}
private long _lastModified = System.currentTimeMillis();
private AtomicReference _templateContent =
new AtomicReference();
private TemplateResource _templateResource;
}