com.revolsys.ui.web.config.PageRefMenuItem.java Source code

Introduction

Here is the source code for com.revolsys.ui.web.config.PageRefMenuItem.java

Source

/*
 * Copyright 2004-2005 Revolution Systems Inc.
 *
 * 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 com.revolsys.ui.web.config;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.apache.commons.jexl.Expression;
import org.apache.log4j.Logger;

import com.revolsys.ui.web.exception.PageNotFoundException;

public class PageRefMenuItem extends MenuItem {
    private static final Logger log = Logger.getLogger(PageRefMenuItem.class);

    private final String pageRef;

    public PageRefMenuItem(final String title, final String pageRef) throws Exception {
        this(title, title, pageRef);
    }

    public PageRefMenuItem(final String name, final String title, final String pageRef) throws Exception {
        this(name, title, pageRef, null, null);
    }

    public PageRefMenuItem(final String name, final String title, final String pageRef, final String anchor,
            final String condition) throws Exception {
        super(name, title, null, anchor, condition);
        this.pageRef = pageRef;
    }

    private Page getReferencedPage() {
        final WebUiContext context = WebUiContext.get();
        final Page currentPage = context.getPage();
        if (currentPage != null) {
            return currentPage.getPage(this.pageRef);
        } else {
            try {
                return context.getConfig().getPage(this.pageRef);
            } catch (final PageNotFoundException e) {
                return null;
            }

        }

    }

    @Override
    public String getTitle() {
        final String title = super.getTitle();
        if (title != null) {
            return title;
        } else {
            final Page referencedPage = getReferencedPage();
            if (referencedPage != null) {
                return referencedPage.getTitle();
            } else {
                return "";
            }
        }
    }

    @Override
    public String getUri() {
        final WebUiContext context = WebUiContext.get();
        final Page referencedPage = getReferencedPage();

        if (referencedPage != null) {
            final Map uriParams = new HashMap();
            if (getStaticParameters() != null) {
                uriParams.putAll(getStaticParameters());
            }
            for (final Iterator params = getParameters().entrySet().iterator(); params.hasNext();) {
                final Map.Entry param = (Map.Entry) params.next();
                final Object key = param.getKey();
                if (!uriParams.containsKey(key)) {
                    final Object value = context.evaluateExpression((Expression) param.getValue());
                    uriParams.put(key, value);
                }
            }
            if (getAnchor() == null) {
                return referencedPage.getFullUrl(uriParams);
            } else {
                return referencedPage.getFullUrl(uriParams) + "#" + getAnchor();
            }
        } else {
            return null;
        }

    }

    @Override
    public boolean isVisible() {
        // TODO Auto-generated method stub
        return super.isVisible();
    }
}