org.springframework.integration.splunk.support.SplunkExecutor.java Source code

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Here is the source code for org.springframework.integration.splunk.support.SplunkExecutor.java

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/*
 * Copyright 2002-2012 the original author or authors.
 *
 * 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.springframework.integration.splunk.support;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.messaging.MessageHandlingException;
import org.springframework.integration.splunk.core.DataReader;
import org.springframework.integration.splunk.core.DataWriter;
import org.springframework.integration.splunk.event.SplunkEvent;
import org.springframework.messaging.Message;
import org.springframework.messaging.MessagingException;

/**
 * Bundles common core logic for the Splunk components.
 *
 * @author Jarred Li
 * @author David Turanski
 * @since 1.0
 *
 */
public class SplunkExecutor {

    private static final Log logger = LogFactory.getLog(SplunkExecutor.class);

    private DataReader reader;
    private DataWriter writer;

    /**
     * Executes the outbound Splunk Operation.
     */
    public Object write(final Message<?> message) {
        try {
            SplunkEvent payload = (SplunkEvent) message.getPayload();
            writer.write(payload);
        } catch (Exception e) {
            String errorMsg = "error in writing data into Splunk";
            logger.warn(errorMsg, e);
            throw new MessageHandlingException(message, errorMsg, e);
        }
        return null;
    }

    public void handleMessage(final Message<?> message) {
        write(message);
    }

    /**
     * Execute the Splunk operation.
     */
    public List<SplunkEvent> poll() {
        logger.debug("poll start:");
        List<SplunkEvent> queryData = null;
        try {
            queryData = reader.read();
        } catch (Exception e) {
            String errorMsg = "search Splunk data failed";
            logger.warn(errorMsg, e);
            throw new MessagingException(errorMsg, e);
        }
        return queryData;
    }

    public void setReader(DataReader reader) {
        this.reader = reader;
    }

    public void setWriter(DataWriter writer) {
        this.writer = writer;
    }

}