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eFaps is a framework used to map objects with or without attached files to
a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface.
The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.
/*
* Copyright 2003 - 2012 The eFaps Team
*
* 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.
*
* Revision: $Rev: 7483 $
* Last Changed: $Date: 2012-05-11 11:57:38 -0500 (Fri, 11 May 2012) $
* Last Changed By: $Author: [email protected] $
*/
package org.efaps.update.schema.program.staticsource;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import org.efaps.admin.EFapsSystemConfiguration;
import org.efaps.admin.common.SystemConfiguration;
import org.efaps.ci.CIAdminProgram;
import org.efaps.ci.CIType;
import org.efaps.db.Checkout;
import org.efaps.db.Instance;
import org.efaps.util.EFapsException;
import org.mozilla.javascript.ErrorReporter;
import org.mozilla.javascript.EvaluatorException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.yahoo.platform.yui.compressor.JavaScriptCompressor;
/**
* Compiler for JavaScript. Compiling actually means that the JavaScripts are
* compressed to be smaller. e.g. removing of comments, linebreaks etc.
* The compression can be deactivated by setting the boolean attribute
* "JavaScript_deactivate_Compression" in the
* kernel SystemConfiguration to "true".
*
* @author The eFaps Team
* @version $Id: JavaScriptCompiler.java 7483 2012-05-11 16:57:38Z [email protected] $
*/
public class JavaScriptCompiler
extends AbstractStaticSourceCompiler
{
/**
* Logger for this class.
*/
private static final Logger LOG = LoggerFactory.getLogger(JavaScriptCompiler.class);
/**
* {@inheritDoc}
*/
@Override
protected String getCompiledString(final Instance _instance)
{
final SystemConfiguration kernelConfig = EFapsSystemConfiguration.KERNEL.get();
final StringBuilder ret = new StringBuilder();
final Checkout checkout = new Checkout(_instance);
try {
final BufferedReader in = new BufferedReader(new InputStreamReader(checkout.execute(), "UTF-8"));
if (JavaScriptCompiler.LOG.isDebugEnabled()) {
final BufferedReader in2 = new BufferedReader(new InputStreamReader(checkout.execute(), "UTF-8"));
final StringBuilder bldr = new StringBuilder();
String line = "";
while (line != null) {
line = in2.readLine();
bldr.append(line != null ? line : "").append("\n");
}
JavaScriptCompiler.LOG.debug(bldr.toString());
in2.close();
}
if (kernelConfig.getAttributeValueAsBoolean("JavaScript_deactivate_Compression")) {
String line = "";
while (line != null) {
line = in.readLine();
ret.append(line != null ? line : "").append("\n");
}
} else {
final JavaScriptCompressor compressor = new JavaScriptCompressor(in, new ErrorReporter() {
/**
* @see org.mozilla.javascript.ErrorReporter#error(java.lang.String, java.lang.String,
* int, java.lang.String, int)
* @param _error error to be written to the log
* @param _arg1 not used
* @param _arg2 not used
* @param _arg3 not used
* @param _arg4 not used
*/
public void error(final String _error,
final String _arg1,
final int _arg2,
final String _arg3,
final int _arg4)
{
JavaScriptCompiler.LOG.error(_error);
}
/**
* @see org.mozilla.javascript.ErrorReporter#runtimeError(java.lang.String, java.lang.String,
* int, java.lang.String, int)
* @param _arg0 not used
* @param _arg1 not used
* @param _arg2 not used
* @param _arg3 not used
* @param _arg4 not used
* @return null not used
*/
public EvaluatorException runtimeError(final String _arg0,
final String _arg1,
final int _arg2,
final String _arg3,
final int _arg4)
{
return null;
}
/**
* @see org.mozilla.javascript.ErrorReporter#warning(java.lang.String, java.lang.String,
* int, java.lang.String, int)
* @param _warning warning to be shown
* @param _arg1 arg1 not used
* @param _arg2 arg2 not used
* @param _arg3 arg3 not used
* @param _arg4 arg4 not used
*/
public void warning(final String _warning,
final String _arg1,
final int _arg2,
final String _arg3,
final int _arg4)
{
// Admin_Program_JavaScriptCompiled_Warn: do we want
// warnings?
final SystemConfiguration kernelConfig = EFapsSystemConfiguration.KERNEL.get();
try {
if (kernelConfig.getAttributeValueAsBoolean("JavaScriptCompiled_Warn")) {
JavaScriptCompiler.LOG.warn(_warning);
}
} catch (final EFapsException e) {
JavaScriptCompiler.LOG.error("error during checkout of Instance:" + _instance, e);
}
}
});
in.close();
checkout.close();
final ByteArrayOutputStream byteout = new ByteArrayOutputStream();
final OutputStreamWriter out = new OutputStreamWriter(byteout);
compressor.compress(out, 140, false, true, true, true);
out.flush();
ret.append(byteout.toString());
}
} catch (final EFapsException e) {
JavaScriptCompiler.LOG.error("error during checkout of Instance:" + _instance, e);
e.printStackTrace();
} catch (final EvaluatorException e) {
JavaScriptCompiler.LOG.error("error during the evaluation of the JavaScript of "
+ "Instance:" + _instance, e);
} catch (final IOException e) {
JavaScriptCompiler.LOG.error("error during reqding of the Inputstram of Instance:" + _instance, e);
}
ret.append("\n");
if (JavaScriptCompiler.LOG.isDebugEnabled()) {
JavaScriptCompiler.LOG.debug(ret.toString());
}
return ret.toString();
}
/**
* {@inheritDoc}
*/
@Override
public AbstractSource getNewSource(final String _name,
final Instance _instance)
{
return new OneJavaScript(_name, _instance);
}
/**
* {@inheritDoc}
*/
@Override
protected CIType getClassName4Type()
{
return CIAdminProgram.JavaScript;
}
/**
* {@inheritDoc}
*/
@Override
protected CIType getClassName4Type2Type()
{
return CIAdminProgram.JavaScript2JavaScript;
}
/**
* {@inheritDoc}
*/
@Override
protected CIType getClassName4TypeCompiled()
{
return CIAdminProgram.JavaScriptCompiled;
}
/**
* Class to store a javascript during compelation.
*/
protected class OneJavaScript
extends AbstractSource
{
/**
* @param _name Name of the JavaScript
* @param _instance Instance of the JavaScript
*/
public OneJavaScript(final String _name,
final Instance _instance)
{
super(_name, _instance);
}
}
}