com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpSession.java Source code

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Here is the source code for com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpSession.java

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// Copyright (C) 2015 The Android Open Source Project
//
// 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.ericsson.gerrit.plugins.highavailability.forwarder.rest;

import com.ericsson.gerrit.plugins.highavailability.forwarder.rest.HttpResponseHandler.HttpResult;
import com.ericsson.gerrit.plugins.highavailability.peers.PeerInfo;
import com.google.common.base.Strings;
import com.google.common.net.MediaType;
import com.google.inject.Inject;
import com.google.inject.Provider;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.Optional;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;

class HttpSession {
    private final CloseableHttpClient httpClient;
    private final Provider<Optional<PeerInfo>> peerInfo;

    @Inject
    HttpSession(CloseableHttpClient httpClient, Provider<Optional<PeerInfo>> peerInfo) {
        this.httpClient = httpClient;
        this.peerInfo = peerInfo;
    }

    HttpResult post(String endpoint) throws IOException {
        return post(endpoint, null);
    }

    HttpResult post(String endpoint, String content) throws IOException {
        HttpPost post = new HttpPost(getPeerInfo().getDirectUrl() + endpoint);
        if (!Strings.isNullOrEmpty(content)) {
            post.addHeader("Content-Type", MediaType.JSON_UTF_8.toString());
            post.setEntity(new StringEntity(content, StandardCharsets.UTF_8));
        }
        return httpClient.execute(post, new HttpResponseHandler());
    }

    HttpResult delete(String endpoint) throws IOException {
        return httpClient.execute(new HttpDelete(getPeerInfo().getDirectUrl() + endpoint),
                new HttpResponseHandler());
    }

    private PeerInfo getPeerInfo() throws PeerInfoNotAvailableException {
        PeerInfo info = peerInfo.get().orElse(null);
        if (info == null) {
            throw new PeerInfoNotAvailableException();
        }
        return info;
    }
}