package org.gridgain.examples.resources;

import org.gridgain.grid.resources.*;
import org.gridgain.grid.logger.*;
import org.gridgain.grid.*;
import java.util.*;

public class GridResourcesContext {
    /** */
    @GridLoggerResource
    private GridLogger log = null;

    /** */
    @GridInstanceResource
    private Grid grid = null;

    /** */
    @GridLocalNodeIdResource
    private UUID nodeId = null;

    /** */
    private List<String> storage = null;

    /** */
    private String storageName = null;

    /** */
    private boolean started = false;

    /**
     *
     */
    @SuppressWarnings("unused")
    @GridUserResourceOnDeployed
    private void deploy() {
        assert log != null;
        assert grid != null;
        assert nodeId != null;

        GridNode node = grid.getLocalNode();

        // Get storage parameters from node attributes.
        storageName = (String)node.getAttributes().get("storage.name");

        if (storageName == null) {
            storageName = "test-storage";
        }

        storage = new ArrayList<String>();

        started = true;

        if (log.isInfoEnabled() == true) {
            log.info("Starting context.");
        }
    }

    /**
     *
     */
    @SuppressWarnings("unused")
    @GridUserResourceOnUndeployed
    private void undeploy() {
        assert log != null;
        assert grid != null;
        assert nodeId != null;

        if (log.isInfoEnabled() == true) {
            log.info("Stopping context.");

            log.info("Storage data: " + storage);
        }
    }

    /**
     * Add data in storage.
     *
     * @param data Data to add.
     * @return Return <tt>true</tt> if data added.
     * @throws Exception If error occurred.
     */
    public boolean sendData(String data) throws Exception {
        if (started == false) {
            return false;
        }

        assert storage != null;

        StringBuilder builder = new StringBuilder();

        builder.append("Data [storageName=").append(storageName).
            append(", nodeId=").append(nodeId.toString()).
            append(", date=").append(new Date()).
            append(", data=").append(data).
            append(']');

        storage.add(builder.toString());

        return true;
    }
}