source: release-kits/shared/ant-installer/src/org/tp23/antinstaller/page/Page.java@ 15211

/* 
 * 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.page;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.StringTokenizer;
import java.util.TreeSet;

import org.tp23.antinstaller.InstallException;
import org.tp23.antinstaller.InstallerContext;
import org.tp23.antinstaller.input.OutputField;
import org.tp23.antinstaller.input.TargetInput;
import org.tp23.antinstaller.runtime.IfPropertyHelper;
/**
 *
 * <p>Represents a page in the installer. </p>
 * <p>This object maintians an ordered list of targets that have been selected
* so that when ant is run the targets are run in the correct order.  If
* Targets exist in multiple pages they are run in the order they appear in the config file.  </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: tp23</p>
 * @author Paul Hinds
 * @version $Id: Page.java,v 1.10 2007/01/19 00:24:36 teknopaul Exp $
 */

public abstract class Page {

//   i18n support
    private static ResourceBundle langPack = null;
    //private static ResourceBundle otherLangPack = null;
    static{
        try {
            langPack = ResourceBundle.getBundle("resources.LanguagePack");
        } catch (MissingResourceException e) {
            // ignore, signifies no lang packs installed  
        }
    }
    
    //private static final int MAX_TARGETS = 10;
    private String name;
    private String displayText;
    private String imageResource;
    private OutputField[] outputField;
    private boolean abort;
    /**
     *  target to be called as the installer is running
     */
    private String postDisplayTarget;
    private Set targets = new TreeSet();

    public Page() {
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getDisplayText() {
        if( langPack != null){
            return langPack.getString("page." + getName() + ".displayText");
        }
        return displayText;
    }

    public void setDisplayText(String displayText) {
        this.displayText = displayText;
    }

    public String getImageResource() {
        return imageResource;
    }

    public void setImageResource(String imageResource) {
        this.imageResource = imageResource;
    }

    public OutputField[] getOutputField() {
        return outputField;
    }

    public void setOutputField(OutputField[] outputField) {
        this.outputField = outputField;
    }

    public String getPostDisplayTarget() {
        return postDisplayTarget;
    }

    public void setPostDisplayTarget(String runtimeTarget) {
        this.postDisplayTarget = runtimeTarget;
    }


    /**
     * These are the ant targets that will be run, this is decided after
     * the Page has been displayed.  For example if the user chooses not
     * to enter a field that may signify that a target should not be run
     * @return A sorted List a list of Ant targets as Strings;
     * @throws InstallException 
     */
    public List getTargets(InstallerContext ctx) {
        List results = new ArrayList(targets.size());
        try {
            Iterator iter = targets.iterator();
            IfPropertyHelper helper = new IfPropertyHelper(ctx);
            while(iter.hasNext()){
                IndexedTarget idxTarget = (IndexedTarget)iter.next();
                if( IndexedTarget.PAGE.equals(idxTarget.getTargetType()) ){
                    if( helper.ifProperty(this) || helper.ifTarget(this, ctx.getInstaller().getPages() ) ){
                        results.add(idxTarget.target);
                    }
                }
                else{
                    results.add(idxTarget.target);
                }
            }
        } catch (InstallException e) {
            // should not happen at runtime if ifProperty has been validated
            e.printStackTrace();
            ctx.log(ctx.getInstaller().isVerbose(), e);
            throw new RuntimeException();
        }
        return results;
    }
    /**
     * get input targets that are selected and all page targets, independent of
     * the ifProperty value 
     * @return
     */
    public List getAllTargets() {
        List results = new ArrayList(targets.size());
        Iterator iter = targets.iterator();
        while(iter.hasNext()){
            IndexedTarget idxTarget = (IndexedTarget)iter.next();
            results.add(idxTarget.target);
        }
        return results;
    }
    /**
     * Comma separated list of targets for this page, called when parsing the
     * config file
     * @param target String
     */
    public void setTarget(String targetList) {
        StringTokenizer st = new StringTokenizer(targetList, ",");
        while (st.hasMoreTokens()) {
            targets.add(new IndexedTarget(TargetInput.getGlobalIdx(), 
                    st.nextToken(),
                    IndexedTarget.PAGE));
        }
    }
    /**
     * Adds an INPUT target to the Page config
     * @param idx
     * @param target
     */
    public void addTarget(int idx, String target) {
        this.targets.add(new IndexedTarget(idx, target, IndexedTarget.INPUT));
    }
    public void removeTarget(int idx) {
        this.targets.remove(new IndexedTarget(idx, null));
    }
    /**
     * returns true if the page has the current target set
     * @param target String
     * @return boolean
     */
    public boolean isTarget(String target) {
        if(target == null){
            return false;
        }
        Iterator iter = targets.iterator();
        while(iter.hasNext()) {
            IndexedTarget idxTarget = (IndexedTarget)iter.next();
            if(idxTarget.target.equals(target)){
                return true;
            }
        }
        return false;
    }

    /**
     * @return a List of IndexedTarget objects
     */
    public List getPageTargets(){
        List toReturn = new ArrayList(targets.size());
        Iterator iter = targets.iterator();
        while(iter.hasNext()) {
            IndexedTarget idxTarget = (IndexedTarget)iter.next();
            if( IndexedTarget.PAGE.equals(idxTarget.targetType) ){
                toReturn.add(idxTarget);
            }
        }
        return toReturn;
    }

    /**
     * @return a List of IndexedTarget objects
     */
    public List getElementTargets(){
        List toReturn = new ArrayList(targets.size());
        Iterator iter = targets.iterator();
        while(iter.hasNext()) {
            IndexedTarget idxTarget = (IndexedTarget)iter.next();
            if( IndexedTarget.INPUT.equals(idxTarget.targetType) ){
                toReturn.add(idxTarget);
            }
        }
        return toReturn;
    }
    /**
     * This is called after the page is displayed, a page can return false to indicate
     * that the installation should abort.  Should be false if the cancel button is pressed.
     * System.exit is not called to allow the installer to clean up temporary files.
     * @return boolean
     */
    public boolean isAbort() {
        return abort;
    }

    public void setAbort(boolean abort) {
        this.abort = abort;
    }
    public static class IndexedTarget implements Comparable{
        
        private static final String PAGE = "page";
        private static final String INPUT = "input";
        
        int idx;
        String target;
        String targetType = INPUT;
        
        IndexedTarget(int idx, String target){
            this.idx = idx;
            this.target = target;
        }
        IndexedTarget(int idx, String target, String targetType){
            this.idx = idx;
            this.target = target;
            this.targetType = targetType;
        }
        
        public boolean equals(Object target){
            IndexedTarget test = (IndexedTarget)target;
            return test.idx == idx;
        }
        // FindBugs - part of equals() contract
        public int hashCode(){
            return this.idx;
        }
        public int compareTo(Object o) {
            IndexedTarget test = (IndexedTarget)o;
            return idx - test.idx;
        }
        public String getTarget() {
            return target;
        }
        public String getTargetType() {
            return targetType;
        }

    }
}