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net.sf.jasperreports.compilers.JRBshGenerator Maven / Gradle / Ivy
/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2011 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see [email protected]
*/
package net.sf.jasperreports.compilers;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import net.sf.jasperreports.engine.JRExpression;
import net.sf.jasperreports.engine.JRExpressionChunk;
import net.sf.jasperreports.engine.JRField;
import net.sf.jasperreports.engine.JRParameter;
import net.sf.jasperreports.engine.JRVariable;
import net.sf.jasperreports.engine.design.JRSourceCompileTask;
import net.sf.jasperreports.engine.util.JRStringUtil;
/**
* @author Teodor Danciu ([email protected] )
* @version $Id: JRBshGenerator.java 4595 2011-09-08 15:55:10Z teodord $
*/
public class JRBshGenerator
{
private static Map fieldPrefixMap;
private static Map variablePrefixMap;
private static Map methodSuffixMap;
/**
*
*/
protected final JRSourceCompileTask sourceTask;
protected Map parametersMap;
protected Map fieldsMap;
protected Map variablesMap;
protected JRVariable[] variables;
static
{
fieldPrefixMap = new HashMap();
fieldPrefixMap.put(new Byte(JRExpression.EVALUATION_OLD), "Old");
fieldPrefixMap.put(new Byte(JRExpression.EVALUATION_ESTIMATED), "");
fieldPrefixMap.put(new Byte(JRExpression.EVALUATION_DEFAULT), "");
variablePrefixMap = new HashMap();
variablePrefixMap.put(new Byte(JRExpression.EVALUATION_OLD), "Old");
variablePrefixMap.put(new Byte(JRExpression.EVALUATION_ESTIMATED), "Estimated");
variablePrefixMap.put(new Byte(JRExpression.EVALUATION_DEFAULT), "");
methodSuffixMap = new HashMap();
methodSuffixMap.put(new Byte(JRExpression.EVALUATION_OLD), "Old");
methodSuffixMap.put(new Byte(JRExpression.EVALUATION_ESTIMATED), "Estimated");
methodSuffixMap.put(new Byte(JRExpression.EVALUATION_DEFAULT), "");
}
protected JRBshGenerator(JRSourceCompileTask sourceTask)
{
this.sourceTask = sourceTask;
this.parametersMap = sourceTask.getParametersMap();
this.fieldsMap = sourceTask.getFieldsMap();
this.variablesMap = sourceTask.getVariablesMap();
this.variables = sourceTask.getVariables();
}
/**
*
*/
public static String generateScript(JRSourceCompileTask sourceTask)
{
JRBshGenerator generator = new JRBshGenerator(sourceTask);
return generator.generateScript();
}
protected String generateScript()
{
StringBuffer sb = new StringBuffer();
generateScriptStart(sb);
generateDeclarations(sb);
generateInitMethod(sb);
sb.append("\n");
sb.append("\n");
List expressions = sourceTask.getExpressions();
sb.append(generateMethod(JRExpression.EVALUATION_DEFAULT, expressions));
if (sourceTask.isOnlyDefaultEvaluation())
{
List empty = new ArrayList();
sb.append(generateMethod(JRExpression.EVALUATION_OLD, empty));
sb.append(generateMethod(JRExpression.EVALUATION_ESTIMATED, empty));
}
else
{
sb.append(generateMethod(JRExpression.EVALUATION_OLD, expressions));
sb.append(generateMethod(JRExpression.EVALUATION_ESTIMATED, expressions));
}
generateScriptEnd(sb);
return sb.toString();
}
protected final void generateScriptStart(StringBuffer sb)
{
/* */
sb.append("//\n");
sb.append("// Generated by JasperReports - ");
sb.append((new SimpleDateFormat()).format(new java.util.Date()));
sb.append("\n");
sb.append("//\n");
sb.append("import net.sf.jasperreports.engine.*;\n");
sb.append("import net.sf.jasperreports.engine.fill.*;\n");
sb.append("\n");
sb.append("import java.util.*;\n");
sb.append("import java.math.*;\n");
sb.append("import java.text.*;\n");
sb.append("import java.io.*;\n");
sb.append("import java.net.*;\n");
sb.append("\n");
/* */
String[] imports = sourceTask.getImports();
if (imports != null && imports.length > 0)
{
for (int i = 0; i < imports.length; i++)
{
sb.append("import ");
sb.append(imports[i]);
sb.append(";\n");
}
}
/* */
sb.append("\n");
sb.append("\n");
sb.append("createBshEvaluator()\n");
sb.append("{\n");
sb.append("\n");
sb.append("\n");
sb.append(" JREvaluator evaluator = null;\n");
sb.append("\n");
}
protected final void generateDeclarations(StringBuffer sb)
{
/* */
if (parametersMap != null && parametersMap.size() > 0)
{
Collection parameterNames = parametersMap.keySet();
for (Iterator it = parameterNames.iterator(); it.hasNext();)
{
sb.append(" JRFillParameter parameter_");
sb.append(JRStringUtil.getJavaIdentifier(it.next()));
sb.append(" = null;\n");
}
}
/* */
sb.append("\n");
/* */
if (fieldsMap != null && fieldsMap.size() > 0)
{
Collection fieldNames = fieldsMap.keySet();
for (Iterator it = fieldNames.iterator(); it.hasNext();)
{
sb.append(" JRFillField field_");
sb.append(JRStringUtil.getJavaIdentifier(it.next()));
sb.append(" = null;\n");
}
}
/* */
sb.append("\n");
/* */
if (variables != null && variables.length > 0)
{
for (int i = 0; i < variables.length; i++)
{
sb.append(" JRFillVariable variable_");
sb.append(JRStringUtil.getJavaIdentifier(variables[i].getName()));
sb.append(" = null;\n");
}
}
}
protected final void generateInitMethod(StringBuffer sb)
{
/* */
sb.append("\n");
sb.append("\n");
sb.append(" init(\n");
sb.append(" JREvaluator evaluator,\n");
sb.append(" Map parsm,\n");
sb.append(" Map fldsm,\n");
sb.append(" Map varsm\n");
sb.append(" )\n");
sb.append(" {\n");
sb.append(" super.evaluator = evaluator;\n");
sb.append("\n");
/* */
if (parametersMap != null && parametersMap.size() > 0)
{
Collection parameterNames = parametersMap.keySet();
String parameterName = null;
for (Iterator it = parameterNames.iterator(); it.hasNext();)
{
parameterName = it.next();
sb.append(" super.parameter_");
sb.append(JRStringUtil.getJavaIdentifier(parameterName));
sb.append(" = (JRFillParameter)parsm.get(\"");
sb.append(JRStringUtil.escapeJavaStringLiteral(parameterName));
sb.append("\");\n");
}
}
/* */
sb.append("\n");
/* */
if (fieldsMap != null && fieldsMap.size() > 0)
{
Collection fieldNames = fieldsMap.keySet();
String fieldName = null;
for (Iterator it = fieldNames.iterator(); it.hasNext();)
{
fieldName = it.next();
sb.append(" super.field_");
sb.append(JRStringUtil.getJavaIdentifier(fieldName));
sb.append(" = (JRFillField)fldsm.get(\"");
sb.append(JRStringUtil.escapeJavaStringLiteral(fieldName));
sb.append("\");\n");
}
}
/* */
sb.append("\n");
/* */
if (variables != null && variables.length > 0)
{
String variableName = null;
for (int i = 0; i < variables.length; i++)
{
variableName = variables[i].getName();
sb.append(" super.variable_");
sb.append(JRStringUtil.getJavaIdentifier(variableName));
sb.append(" = (JRFillVariable)varsm.get(\"");
sb.append(JRStringUtil.escapeJavaStringLiteral(variableName));
sb.append("\");\n");
}
}
/* */
sb.append(" }\n");
}
protected void generateScriptEnd(StringBuffer sb)
{
sb.append("\n");
sb.append(" str(String key)\n");
sb.append(" {\n");
sb.append(" return super.evaluator.str(key);\n");
sb.append(" }\n");
sb.append("\n");
sb.append(" msg(String pattern, Object arg0)\n");
sb.append(" {\n");
sb.append(" return super.evaluator.msg(pattern, arg0);\n");
sb.append(" }\n");
sb.append("\n");
sb.append(" msg(String pattern, Object arg0, Object arg1)\n");
sb.append(" {\n");
sb.append(" return super.evaluator.msg(pattern, arg0, arg1);\n");
sb.append(" }\n");
sb.append("\n");
sb.append(" msg(String pattern, Object arg0, Object arg1, Object arg2)\n");
sb.append(" {\n");
sb.append(" return super.evaluator.msg(pattern, arg0, arg1, arg2);\n");
sb.append(" }\n");
sb.append("\n");
sb.append(" msg(String pattern, Object[] args)\n");
sb.append(" {\n");
sb.append(" return super.evaluator.msg(pattern, args);\n");
sb.append(" }\n");
sb.append("\n");
sb.append(" return this;\n");
sb.append("}\n");
}
/**
*
*/
protected final String generateMethod(byte evaluationType, List expressionsList)
{
StringBuffer sb = new StringBuffer();
/* */
sb.append(" Object evaluate");
sb.append(methodSuffixMap.get(new Byte(evaluationType)));
sb.append("(int id)\n");
sb.append(" {\n");
sb.append(" Object value = null;\n");
sb.append("\n");
sb.append(" switch (id)\n");
sb.append(" {\n");
if (expressionsList != null && !expressionsList.isEmpty())
{
JRExpression expression = null;
for (Iterator it = expressionsList.iterator(); it.hasNext();)
{
expression = it.next();
sb.append(" case ");
sb.append(sourceTask.getExpressionId(expression));
sb.append(" :\n");
sb.append(" {\n");
sb.append(" value = ");
sb.append(this.generateExpression(expression, evaluationType));
sb.append(";\n");
sb.append(" break;\n");
sb.append(" }\n");
}
}
/* */
sb.append(" default :\n");
sb.append(" {\n");
sb.append(" }\n");
sb.append(" }\n");
sb.append(" \n");
sb.append(" return value;\n");
sb.append(" }\n");
sb.append("\n");
sb.append("\n");
return sb.toString();
}
/**
*
*/
private String generateExpression(
JRExpression expression,
byte evaluationType
)
{
JRParameter jrParameter = null;
JRField jrField = null;
JRVariable jrVariable = null;
StringBuffer sbuffer = new StringBuffer();
JRExpressionChunk[] chunks = expression.getChunks();
JRExpressionChunk chunk = null;
String chunkText = null;
if (chunks != null && chunks.length > 0)
{
for(int i = 0; i < chunks.length; i++)
{
chunk = chunks[i];
chunkText = chunk.getText();
if (chunkText == null)
{
chunkText = "";
}
switch (chunk.getType())
{
case JRExpressionChunk.TYPE_TEXT :
{
sbuffer.append(chunkText);
break;
}
case JRExpressionChunk.TYPE_PARAMETER :
{
jrParameter = parametersMap.get(chunkText);
sbuffer.append("((");
sbuffer.append(jrParameter.getValueClassName());
sbuffer.append(")super.parameter_");
sbuffer.append(JRStringUtil.getJavaIdentifier(chunkText));
sbuffer.append(".getValue())");
break;
}
case JRExpressionChunk.TYPE_FIELD :
{
jrField = fieldsMap.get(chunkText);
sbuffer.append("((");
sbuffer.append(jrField.getValueClassName());
sbuffer.append(")super.field_");
sbuffer.append(JRStringUtil.getJavaIdentifier(chunkText));
sbuffer.append(".get");
sbuffer.append(fieldPrefixMap.get(new Byte(evaluationType)));
sbuffer.append("Value())");
break;
}
case JRExpressionChunk.TYPE_VARIABLE :
{
jrVariable = variablesMap.get(chunkText);
sbuffer.append("((");
sbuffer.append(jrVariable.getValueClassName());
sbuffer.append(")super.variable_");
sbuffer.append(JRStringUtil.getJavaIdentifier(chunkText));
sbuffer.append(".get");
sbuffer.append(variablePrefixMap.get(new Byte(evaluationType)));
sbuffer.append("Value())");
break;
}
case JRExpressionChunk.TYPE_RESOURCE :
{
jrParameter = parametersMap.get(chunkText);
sbuffer.append("super.evaluator.str(\"");
sbuffer.append(chunkText);
sbuffer.append("\")");
break;
}
}
}
}
if (sbuffer.length() == 0)
{
sbuffer.append("null");
}
return sbuffer.toString();
}
}
