com.armhold.wicketsource.WicketSourceApplicationComponent.java Source code

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Here is the source code for com.armhold.wicketsource.WicketSourceApplicationComponent.java

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/*
 *  Copyright 2012 George Armhold
 *
 *  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.
 *  under the License.
 */
package com.armhold.wicketsource;

import com.intellij.ide.util.PropertiesComponent;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.components.ApplicationComponent;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.options.Configurable;
import com.intellij.openapi.options.ConfigurationException;
import com.intellij.openapi.ui.Messages;
import org.jetbrains.annotations.Nls;
import org.jetbrains.annotations.NotNull;

import javax.swing.*;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.ServerSocket;

/**
 * main entrypoint for the plugin
 *
 * NB: This code was heavily inspired by the RemoteCall plugin by Alexander Zolotov
 * @see https://github.com/zolotov/RemoteCall
 */
public class WicketSourceApplicationComponent implements ApplicationComponent, Configurable {
    private static final Logger log = Logger.getInstance(WicketSourceApplicationComponent.class);
    public static final String PORT_KEY = "com.armhold.wicketsource.port";
    public static final String PASSWORD_KEY = "com.armhold.wicketsource.password";
    public static final int DEFAULT_PORT = 9123;

    private static ServerSocket serverSocket;
    private static Thread listener;

    private JComponent myComponent;
    private JPanel myPanel;
    private JTextField portNumberField;
    private JTextField passwordField;

    public WicketSourceApplicationComponent() {
        log.info("starting");
    }

    public void initComponent() {
        initListenerAndSocket();
    }

    private void initListenerAndSocket() {
        final int port = getPort();

        try {
            serverSocket = new ServerSocket();
            serverSocket.bind(new InetSocketAddress("localhost", port));
            log.info("WicketSource plugin listening on port: " + port);
        } catch (IOException e) {
            ApplicationManager.getApplication().invokeLater(new Runnable() {
                public void run() {
                    Messages.showMessageDialog("WicketSource plugin: can't bind to port: " + port,
                            "WicketSource Plugin Error", Messages.getErrorIcon());
                }
            });

            return;
        }

        Listener messageNotifier = new Listener(serverSocket);
        listener = new Thread(messageNotifier);
        listener.start();
    }

    private void disposeListenerAndSocket() {
        try {
            if (serverSocket != null) {
                serverSocket.close();
            }

            if (listener != null) {
                listener.interrupt();
            }
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }

    public void disposeComponent() {
        disposeListenerAndSocket();
    }

    @NotNull
    public String getComponentName() {
        return "WicketSource";
    }

    @Nls
    @Override
    public String getDisplayName() {
        return "WicketSource";
    }

    @Override
    public Icon getIcon() {
        return null;
    }

    @Override
    public String getHelpTopic() {
        return null;
    }

    @Override
    public JComponent createComponent() {
        // Define a set of possible values for combo boxes.
        PropertiesComponent.getInstance().getValue("", "");

        portNumberField.setText(Integer.toString(getPort()));
        passwordField.setText(getPassword());

        myComponent = myPanel;
        return myComponent;
    }

    public static int getPort() {
        String result = PropertiesComponent.getInstance().getValue(PORT_KEY, Integer.toString(DEFAULT_PORT));
        return Integer.parseInt(result);
    }

    public static String getPassword() {
        return PropertiesComponent.getInstance().getValue(PASSWORD_KEY, "");
    }

    @Override
    public boolean isModified() {
        return true;
    }

    @Override
    public void apply() throws ConfigurationException {
        String port = portNumberField.getText();
        String password = passwordField.getText();

        PropertiesComponent props = PropertiesComponent.getInstance();
        props.setValue(PORT_KEY, port);
        props.setValue(PASSWORD_KEY, password);

        disposeListenerAndSocket();
        initListenerAndSocket();
    }

    @Override
    public void reset() {

    }

    @Override
    public void disposeUIResources() {

    }
}