com.vintank.slack4j.webhook.SlackWebHook.java Source code

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Here is the source code for com.vintank.slack4j.webhook.SlackWebHook.java

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/**
 * Copyright (C) 2014 James Jory (james@vintank.com)
 *
 * 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.vintank.slack4j.webhook;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.http.Consts;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.params.AllClientPNames;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreProtocolPNames;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.vintank.slack4j.webhook.entity.Payload;

public class SlackWebHook {
    private static final ObjectMapper MAPPER = new ObjectMapper();
    private final String url;

    public SlackWebHook(String url) {
        this.url = url;
    }

    public void send(String message) throws IOException {
        send(new Payload(message));
    }

    public void send(Payload payload) throws IOException {
        HttpPost post = new HttpPost(url);

        try {
            post.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "Slack4j/1.0");
            post.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, "UTF-8");

            HttpClient client = new DefaultHttpClient();
            client.getParams().setParameter(AllClientPNames.CONNECTION_TIMEOUT, 5000);
            client.getParams().setParameter(AllClientPNames.SO_TIMEOUT, 5000);

            List<NameValuePair> nvps = new ArrayList<NameValuePair>(1);
            nvps.add(new BasicNameValuePair("payload", MAPPER.writeValueAsString(payload)));

            post.setEntity(new UrlEncodedFormEntity(nvps, Consts.UTF_8));

            client.execute(post);
        } finally {
            post.releaseConnection();
        }
    }
}