source: release-kits/shared/ant-installer/src/org/tp23/antinstaller/renderer/text/SelectInputRenderer.java@ 15353

/* 
 * 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.PrintStream;
import java.util.ResourceBundle;

import org.tp23.antinstaller.InstallerContext;
import org.tp23.antinstaller.input.OutputField;
import org.tp23.antinstaller.input.SelectInput;


public class SelectInputRenderer
    implements TextOutputFieldRenderer {

    private static final ResourceBundle res = ResourceBundle.getBundle("resources.LanguagePack");

    protected InstallerContext ctx;
    public SelectInputRenderer() {
    }

    public void setContext(InstallerContext ctx) {
        this.ctx = ctx;
    }

    public void renderOutput(OutputField field, BufferedReader reader, PrintStream out) throws IOException {
        SelectInput iField = (SelectInput) field;
        printText(iField,out);
        
        String input = reader.readLine();
        out.println();
        if(input == null || input.equals("")){
            input = iField.getDefaultValue();
        }
        else {
            try {
                int idx = Integer.parseInt(input.trim());
                input = iField.getOptions()[idx - 1].value;
            } catch(Exception numFormatOrIndexOutOfBounds){
                return;
            }
        }
        iField.setInputResult(input);
    }
    public boolean isAbort(){
        return false;
    }
    private void printText(SelectInput iField, PrintStream out) throws IOException{
        out.println(iField.getDisplayText());
        SelectInput.Option[] options = iField.getOptions();
        out.print("  ");
        out.println(res.getString("enterNumber"));
        for (int i = 0; i < options.length; i++) {
            out.print("  ");
            out.print(i+1);
            out.print(") ");
            out.print(options[i].getText());
            if(iField.getDefaultValue().equals(options[i].value)){
                out.print(" [");
                out.print(res.getString("_default_"));
                out.print("]");
            }
            out.println();
        }
    }



    /**
     * renderError
     *
     * @param field InputField
     * @param in InputStream
     * @param out PrintStream
     */
    public void renderError(OutputField field, BufferedReader reader, PrintStream out) throws IOException {
        ctx.getMessageRenderer().printMessage("Not a valid selection");
        renderOutput(field, reader, out);
    }
}