edu.tsinghua.software.pages.keyspace.KeyspacePage.java Source code

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Here is the source code for edu.tsinghua.software.pages.keyspace.KeyspacePage.java

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package edu.tsinghua.software.pages.keyspace;

/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/

import java.util.Locale;
import java.util.Map;

import org.apache.cassandra.thrift.InvalidRequestException;
import org.apache.cassandra.thrift.KsDef;
import org.apache.cassandra.thrift.NotFoundException;
import org.apache.cassandra.thrift.SchemaDisagreementException;
import org.apache.thrift.TException;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.BookmarkablePageLink;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.model.Model;
import org.apache.wicket.request.mapper.parameter.PageParameters;

import edu.tsinghua.software.cassandra.tools.ClusterManager;
import edu.tsinghua.software.cassandra.tools.DataManager;
import edu.tsinghua.software.pages.cluster.ClusterView;
import edu.tsinghua.software.pages.columnFamily.AddColumnFamily;
import edu.tsinghua.software.pages.columnFamily.ColumnFamilyPage;
import edu.tsinghua.software.pages.columnFamily.DeleteColumnFamilyPage;
import edu.tsinghua.software.pages.template.BasePage;
import edu.tsinghua.software.pages.template.MenuItemEnum;
import edu.tsinghua.software.reuseComponent.ConfirmLink;

/* * 
 * keyspace page which contains the detail of one keyspace, and list column family in this keyspace
 * @author 
 */
public class KeyspacePage extends BasePage {
    String keyspaceName = ""; // keyspace name of this page
    String clusterName = "";
    transient KsDef ksDef = new KsDef(); // keyspace object of this page
    transient DataManager client;
    transient ClusterManager clusterManager;

    private static final long serialVersionUID = 1L;

    /**
     * KeyspacePage Contruct
     * @param pageParameters
     * @throws InvalidRequestException 
     * @throws TException 
     * @throws NotFoundException 
     * */
    public KeyspacePage(final PageParameters pageParameters)
            throws NotFoundException, TException, InvalidRequestException {
        super();
        init(pageParameters);

        // add neviation, cluster>>name
        add(new BookmarkablePageLink<Void>("clusterNevigation", ClusterView.class)
                .add(new Label("clusterName", clusterName)));
        add(new Label("keyspaceName", keyspaceName));

        ConfirmLink deleteKeyspaceButton = new ConfirmLink("deleteKslinkButton",
                "? " + this.keyspaceName + "?") {
            @Override
            public void onClick() {
                try {
                    client.dropKeyspace(keyspaceName);
                    setResponsePage(new KeyspacePage(pageParameters));
                } catch (Exception e) {
                    e.printStackTrace();
                }
                setResponsePage(ClusterView.class, pageParameters);

            }
        };

        //for mutiple languge
        String deleteKsStr;
        if (getSession().getLocale() == Locale.US) {
            deleteKsStr = "Delete";
        } else {
            deleteKsStr = "";
        }
        deleteKeyspaceButton
                .add(new AttributeModifier("value", new Model(deleteKsStr + " '" + this.keyspaceName + "'")));
        add(deleteKeyspaceButton);

        add(new AjaxLink("editKslinkButton") {

            @Override
            public void onClick(AjaxRequestTarget target) {
                setResponsePage(EditKeyspace.class, pageParameters);

            }
        });
        add(new AjaxLink("addCflinkButton") {

            @Override
            public void onClick(AjaxRequestTarget target) {
                setResponsePage(AddColumnFamily.class, pageParameters);

            }
        });
        // delete ColumnFamily button
        add(new AjaxLink("deleteCflinkButton") {
            @Override
            public void onClick(AjaxRequestTarget target) {
                setResponsePage(DeleteColumnFamilyPage.class, pageParameters);
            }
        });

        //columnFamily List
        ListView cfView = new ListView("cfList", new CfListModel(this.keyspaceName, this.client)) {
            private static final long serialVersionUID = 1L;

            protected void populateItem(ListItem item) {
                PageParameters params = new PageParameters();
                params.add("columnFamilyParam", item.getModelObject().toString());
                params.add("keyspaceParam", keyspaceName);
                params.add("clusterParam", clusterName);
                item.add(new BookmarkablePageLink<Void>("cfLink", ColumnFamilyPage.class, params)
                        .add(new Label("cfName", item.getModel())));
            }
        };

        add(cfView);
        add(new KeyspaceInfoPanel("kespaceInfo", ksDef));
        Map<String, String> keyspaceStatics = clusterManager.getKeyspaceStatics(keyspaceName);
        add(new KeyspaceStaticsPanel("kespaceStatic", keyspaceStatics));

    }

    private void init(PageParameters pageParameters) throws NotFoundException, InvalidRequestException, TException {
        // get the paramkeyspace
        keyspaceName = pageParameters.get("keyspaceParam").toString();
        clusterName = pageParameters.get("clusterParam").toString();
        client = new DataManager(getConnection());
        clusterManager = new ClusterManager(getConnection());
        ksDef = client.describeKeyspace(keyspaceName);

    }

    @Override
    public MenuItemEnum getActiveMenu() {
        // TODO Auto-generated method stub
        return null;
    }
}