org.opencrx.kernel.utils.ScriptUtils Maven / Gradle / Ivy
The newest version!
/*
* ====================================================================
* Project: openCRX/Core, http://www.opencrx.org/
* Description: ScriptUtils
* Owner: the original authors.
* ====================================================================
*
* This software is published under the BSD license
* as listed below.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openCRX team nor the names of the contributors
* to openCRX may be used to endorse or promote products derived
* from this software without specific prior written permission
*
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by the Apache Software
* Foundation (http://www.apache.org/).
*
* This product includes software developed by contributors to
* openMDX (http://www.openmdx.org/)
*/
package org.opencrx.kernel.utils;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.codehaus.commons.compiler.CompileException;
import org.codehaus.janino.ClassBodyEvaluator;
import org.openmdx.base.exception.ServiceException;
import org.openmdx.kernel.exception.BasicException;
/**
* ScriptUtils
*
*/
public class ScriptUtils {
/**
* Get compiled class for script.
*
* @param script
* @return
* @throws ServiceException
*/
public static Class getClass(
String script
) throws ServiceException {
try {
if(!script.endsWith("\n")) {
script += "\n";
}
for(String invalidWord: INVALID_WORDS) {
int pos = script.indexOf(invalidWord);
while(pos >= 0) {
if(pos > 0 && !Character.isLetter(script.charAt(pos - 1))) {
throw new ServiceException(
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.ASSERTION_FAILURE,
"Script contains invalid words",
new BasicException.Parameter("script", script),
new BasicException.Parameter("word", invalidWord),
new BasicException.Parameter("invalid words", INVALID_WORDS)
);
}
pos = script.indexOf(invalidWord, pos + 1);
}
}
Map> classes = compiledScripts.get();
Class clazz = classes.get(script);
if(clazz == null) {
clazz = new ClassBodyEvaluator(script).getClazz();
classes.put(
script,
clazz
);
}
return clazz;
} catch(CompileException e) {
throw new ServiceException(
e,
BasicException.Code.DEFAULT_DOMAIN,
BasicException.Code.PARSE_FAILURE,
"Script compile error: " + e.getMessage(),
new BasicException.Parameter("script", script)
);
} catch(Exception e) {
throw new ServiceException(e);
}
}
private static final List INVALID_WORDS = Arrays.asList(
"commit(", "commit ",
"begin(", "begin ",
"getPersistenceManagerFactory",
"System.", "System ",
"Runtime.", "Runtime ",
"InitialContext"
);
protected static final ThreadLocal>> compiledScripts = new ThreadLocal>>() {
protected synchronized Map> initialValue() {
return new java.util.IdentityHashMap>();
}
};
}