source: other-projects/trunk/realistic-books/packages/AntInstaller/src/org/tp23/antinstaller/renderer/text/TextPageRenderer.java@ 19253

/* 
 * Copyright 2005 Paul Hinds
 *
 * 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 org.tp23.antinstaller.renderer.text;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ResourceBundle;

import org.tp23.antinstaller.InstallException;
import org.tp23.antinstaller.page.Page;
import org.tp23.antinstaller.page.TextPage;


public class TextPageRenderer
    extends AbstractTextPageRenderer {

    private static final ResourceBundle res = ResourceBundle.getBundle("org.tp23.antinstaller.renderer.text.Res");
    private static final String nextChar = res.getString("nextChar");

    public TextPageRenderer() {
    }

    public boolean renderPage(Page page) throws InstallException {
        if (page instanceof TextPage) {
            TextPage lPage = (TextPage) page;
            return renderTextPage(lPage);
        }
        else {
            throw new InstallException("Wrong Renderer in TextPageRenderer.renderPage");
        }
    }

    private boolean renderTextPage(TextPage page) throws InstallException {
        try {
            BufferedReader commandReader = reader;//new BufferedReader(new InputStreamReader(in));

            String resource = page.getTextResource();
            InputStream textin = this.getClass().getResourceAsStream(resource);
            BufferedReader reader = new BufferedReader(new InputStreamReader(textin));
            printHeader(page);
            String lineread = null;
            StringBuffer sb = new StringBuffer();

            while ( (lineread = reader.readLine()) != null) {
                sb.append(lineread);
                sb.append('\n');
            }
            // as per FindBugs
            reader.close();

            // parse property references
            String parsedText = getContext().getInstaller().getResultContainer().getDefaultValue(sb.toString());

            String command = null;
            Pager pager = new Pager(parsedText);
            do {
                if (!pager.next(out)) {
                    break;
                }
                out.println();
                out.println(getNextInstructions());
                command = commandReader.readLine();
            }
            while (command.toUpperCase().startsWith(nextChar));
            pager.rest(out);

            for (int i = 0; i < PAGE_DECO_WIDTH; i++) {
                out.print('~');
            }
            
            out.println();
            out.println(res.getString("clickViewText"));
            commandReader.readLine();
            
            return true;
        }
        catch (IOException ex) {
            throw new InstallException("Not able to read text file", ex);
        }
    }

    private String getNextInstructions() {
        return res.getString("license_next");
    }
}