com.smartitengineering.cms.spi.impl.AbstractRepresentationProvider.java Source code

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Here is the source code for com.smartitengineering.cms.spi.impl.AbstractRepresentationProvider.java

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/*
 *
 * This is a simple Content Management System (CMS)
 * Copyright (C) 2009  Imran M Yousuf (imyousuf@smartitengineering.com)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.smartitengineering.cms.spi.impl;

import com.smartitengineering.cms.api.content.Content;
import com.smartitengineering.cms.api.content.MutableRepresentation;
import com.smartitengineering.cms.api.content.template.RepresentationGenerator;
import com.smartitengineering.cms.api.factory.SmartContentAPI;
import com.smartitengineering.cms.api.type.RepresentationDef;
import java.io.InputStream;
import java.io.Reader;
import java.util.Map;
import org.apache.commons.codec.binary.StringUtils;
import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 *
 * @author imyousuf
 */
public class AbstractRepresentationProvider {

    protected final transient Logger logger = LoggerFactory.getLogger(getClass());

    protected MutableRepresentation getMutableRepresentation(RepresentationGenerator generator, Content content,
            Map<String, String> params, String representationName) throws RuntimeException {
        final Object representationForContent = generator.getRepresentationForContent(content, params);
        final byte[] bytes;
        if (representationForContent instanceof String) {
            bytes = StringUtils.getBytesUtf8((String) representationForContent);
        } else if (representationForContent instanceof byte[]) {
            bytes = (byte[]) representationForContent;
        } else if (representationForContent instanceof InputStream) {
            try {
                bytes = IOUtils.toByteArray((InputStream) representationForContent);
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            }
        } else if (representationForContent instanceof Reader) {
            try {
                bytes = IOUtils.toByteArray((Reader) representationForContent);
            } catch (Exception ex) {
                throw new RuntimeException(ex);
            }
        } else {
            bytes = StringUtils.getBytesUtf8(representationForContent.toString());
        }
        MutableRepresentation representation = SmartContentAPI.getInstance().getContentLoader()
                .createMutableRepresentation(content.getContentId());
        final RepresentationDef def = content.getContentDefinition().getRepresentationDefs()
                .get(representationName);
        representation.setName(representationName);
        representation.setMimeType(def.getMIMEType());
        representation.setRepresentation(bytes);
        return representation;
    }
}