001/*
002 * (C) Copyright 2006-2015 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Nuxeo - initial API and implementation
018 *
019 */
020package org.nuxeo.template.processors;
021
022import java.io.File;
023
024import org.apache.commons.io.FileUtils;
025import org.apache.commons.logging.Log;
026import org.apache.commons.logging.LogFactory;
027
028import org.nuxeo.common.Environment;
029import org.nuxeo.ecm.core.api.Blob;
030import org.nuxeo.runtime.api.Framework;
031import org.nuxeo.template.api.TemplateProcessor;
032import org.nuxeo.template.api.adapters.TemplateBasedDocument;
033
034/**
035 * Common code between the implementations of {@link TemplateProcessor}
036 *
037 * @author Tiry ([email protected])
038 */
039public abstract class AbstractTemplateProcessor implements TemplateProcessor {
040
041    protected static final int BUFFER_SIZE = 1024 * 64; // 64K
042
043    protected static final Log log = LogFactory.getLog(AbstractTemplateProcessor.class);
044
045    protected File getWorkingDir() {
046        File workingDir = new File(Environment.getDefault().getTemp(), "NXTemplateProcessor"
047                + System.currentTimeMillis());
048        if (workingDir.exists()) {
049            FileUtils.deleteQuietly(workingDir);
050        }
051        workingDir.mkdirs();
052        Framework.trackFile(workingDir, workingDir);
053        return workingDir;
054    }
055
056    protected Blob getSourceTemplateBlob(TemplateBasedDocument templateBasedDocument, String templateName) {
057        return templateBasedDocument.getTemplateBlob(templateName);
058    }
059
060}