001/*
002 * (C) Copyright 2006-2007 Nuxeo SAS <http://nuxeo.com> and others
003 *
004 * All rights reserved. This program and the accompanying materials
005 * are made available under the terms of the Eclipse Public License v1.0
006 * which accompanies this distribution, and is available at
007 * http://www.eclipse.org/legal/epl-v10.html
008 *
009 * Contributors:
010 *     Jean-Marc Orliaguet, Chalmers
011 *
012 * $Id$
013 */
014
015package org.nuxeo.theme.views;
016
017import java.io.BufferedReader;
018import java.io.IOException;
019import java.io.InputStream;
020import java.io.InputStreamReader;
021import java.io.Reader;
022
023import org.apache.commons.logging.Log;
024import org.apache.commons.logging.LogFactory;
025import org.nuxeo.theme.ResourceResolver;
026import org.nuxeo.theme.rendering.RenderingInfo;
027
028public class TemplateView extends AbstractView {
029
030    private static final Log log = LogFactory.getLog(TemplateView.class);
031
032    @Override
033    public String render(final RenderingInfo info) {
034        final ViewType viewType = getViewType();
035        final String template = viewType.getTemplate();
036        return getTemplateContent(template);
037    }
038
039    public String getTemplateContent(final String template) {
040        String result = "";
041        InputStream is = null;
042        try {
043            // checks through FacesResourceResolver
044            is = ResourceResolver.getInstance().getResourceAsStream(template);
045            if (is == null) {
046                log.warn("Template file not found: " + template);
047            } else {
048                Reader in = null;
049                try {
050                    in = new BufferedReader(new InputStreamReader(is));
051                    StringBuilder rendered = new StringBuilder();
052                    int ch;
053                    while ((ch = in.read()) > -1) {
054                        rendered.append((char) ch);
055                    }
056                    result = rendered.toString();
057                } catch (IOException e) {
058                    log.error(e, e);
059                } finally {
060                    if (in != null) {
061                        in.close();
062                    }
063                }
064            }
065        } catch (IOException e) {
066            log.error(e, e);
067        } finally {
068            if (is != null) {
069                try {
070                    is.close();
071                } catch (IOException e) {
072                    log.error(e, e);
073                } finally {
074                    is = null;
075                }
076            }
077        }
078        return result.trim();
079    }
080}