net.javacrumbs.smock.common.groovy.GroovyTemplateProcessor.java Source code

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Here is the source code for net.javacrumbs.smock.common.groovy.GroovyTemplateProcessor.java

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/**
 * Copyright 2009-2010 the original author or authors.
 *
 * 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.
 */
package net.javacrumbs.smock.common.groovy;

import static net.javacrumbs.smock.common.XmlUtil.loadDocument;
import static net.javacrumbs.smock.common.XmlUtil.serialize;
import groovy.text.SimpleTemplateEngine;
import groovy.text.TemplateEngine;
import groovy.util.XmlSlurper;

import java.io.StringReader;
import java.util.HashMap;
import java.util.Map;

import javax.xml.transform.Source;

import net.javacrumbs.smock.common.TemplateProcessor;

import org.springframework.xml.transform.StringSource;
import org.w3c.dom.Document;

/**
 * Groovy based template engine.
 * @author Lukas Krecan
 */
public class GroovyTemplateProcessor implements TemplateProcessor {
    private final TemplateEngine templateEngine;

    public GroovyTemplateProcessor(TemplateEngine templateEngine) {
        this.templateEngine = templateEngine;
    }

    public GroovyTemplateProcessor() {
        this(new SimpleTemplateEngine());
    }

    public Source processTemplate(Source template, Source input, Map<String, Object> parameters) {
        try {
            String templateText = serialize(template);
            HashMap<String, Object> binding = new HashMap<String, Object>(parameters);
            if (input != null) {
                Document inputDocument = loadDocument(input);
                binding.put(inputDocument.getFirstChild().getLocalName(),
                        new XmlSlurper().parse(new StringReader(serialize(inputDocument))));
            }
            binding.put("IGNORE", "${IGNORE}");
            return new StringSource(templateEngine.createTemplate(templateText).make(binding).toString());
        } catch (Exception e) {
            throw new IllegalArgumentException("Can not process Groovy template.", e);
        }
    }

}