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/*
 * Copyright (C) 2016 Original 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 io.fabric8.docker.client.impl;

import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import io.fabric8.docker.api.model.ContainerChange;
import io.fabric8.docker.api.model.ContainerExecCreateResponse;
import io.fabric8.docker.api.model.ContainerInspect;
import io.fabric8.docker.api.model.ContainerProcessList;
import io.fabric8.docker.api.model.ExecConfig;
import io.fabric8.docker.api.model.InlineExecConfig;
import io.fabric8.docker.api.model.Stats;
import io.fabric8.docker.client.Config;
import io.fabric8.docker.client.DockerClientException;
import io.fabric8.docker.client.utils.URLUtils;
import io.fabric8.docker.dsl.InputOutputErrorHandle;
import io.fabric8.docker.dsl.OutputHandle;
import io.fabric8.docker.dsl.container.ContainerExecResourceLogsAttachArhciveInterface;
import io.fabric8.docker.dsl.container.ContainerInputOutputErrorStreamGetLogsInterface;
import io.fabric8.docker.dsl.container.DownloadFromUploadToInterface;
import io.fabric8.docker.dsl.container.SinceContainerOutputErrorTimestampsTailingLinesFollowDisplayInterface;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.List;

public class ContainerNamedOperationImpl extends BaseContainerOperation implements
        ContainerExecResourceLogsAttachArhciveInterface, InputStream, Stats, Boolean, OutputHandle, ContainerInspect, InputOutputErrorHandle, OutputStream> {

    private static final String EXEC_OPERATION = "exec";
    private static final String TOP_OPERATION = "top";
    private static final String CHANGES_OPERATION = "changes";
    private static final String EXPORT_OPERATION = "export";
    private static final String STATS_OPERATION = "stats";
    private static final String START_OPERATION = "start";
    private static final String STOP_OPERATION = "stop";
    private static final String KILL_OPERATION = "kill";
    private static final String RESTART_OPERATION = "restart";
    private static final String RESIZE_OPERATION = "resize";
    private static final String REMOVE_VOLUMES = "v";
    private static final String TIMEOUT = "t";
    private static final String SIGNAL = "signal";
    private static final String SIGINT = "SIGINT";
    private static final String SIZE = "size";

    public ContainerNamedOperationImpl(OkHttpClient client, Config config, String name) {
        super(client, config, name, null);
    }

    @Override
    public DownloadFromUploadToInterface arhcive() {
        return new ArchieveContainer(client, config, name);
    }

    @Override
    public ContainerProcessList top() {
        return top(null);
    }

    @Override
    public ContainerProcessList top(String args) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(URLUtils.join(getResourceUrl().toString(), TOP_OPERATION));
            if (args != null && !args.isEmpty()) {
                sb.append("?ps_args=").append(args);
            }
            return handleGet(new URL(sb.toString()), ContainerProcessList.class);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public List changes() {
        try {
            return handleList(new URL(URLUtils.join(getResourceUrl().toString(), CHANGES_OPERATION)), ContainerChange.class);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public InputStream export() {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), EXPORT_OPERATION));
            return handleResponseStream(requestBuilder, 200);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Stats stats() {
        return stats(false);
    }

    @Override
    public Stats stats(Boolean stream) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(URLUtils.join(getResourceUrl().toString(), STATS_OPERATION));
            sb.append(Q).append("stream").append(EQUALS).append(stream);
            return handleGet(new URL(sb.toString()), Stats.class);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean resize(int h, int w) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            sb.append(Q).append("h").append(EQUALS).append(h);
            sb.append(A).append("w").append(EQUALS).append(w);
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), RESIZE_OPERATION));
            handleResponse(requestBuilder, 200);
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean start() {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), START_OPERATION));
            handleResponse(requestBuilder, 204);
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean stop() {
        return stop(0);
    }

    @Override
    public Boolean stop(int time) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            sb.append(Q).append(TIMEOUT).append(EQUALS).append(time);
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), STOP_OPERATION));
            handleResponse(requestBuilder, 204);
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean restart() {
        return restart(0);
    }

    @Override
    public Boolean restart(int time) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            sb.append(Q).append(TIMEOUT).append(EQUALS).append(time);
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), RESTART_OPERATION));
            handleResponse(requestBuilder, 204);
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean kill() {
        return kill(SIGINT);
    }

    @Override
    public Boolean kill(String signal) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            sb.append(Q).append(SIGNAL).append(EQUALS).append(signal);
            RequestBody body = RequestBody.create(MEDIA_TYPE_TEXT, EMPTY);
            Request.Builder requestBuilder = new Request.Builder().post(body).url(URLUtils.join(getResourceUrl().toString(), KILL_OPERATION));
            handleResponse(requestBuilder, 204);
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public Boolean remove() {
        return remove(false);
    }

    @Override
    public Boolean remove(Boolean removeVolumes) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getResourceUrl());
            sb.append("?").append(REMOVE_VOLUMES).append(removeVolumes);
            handleDelete(getResourceUrl());
            return true;
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public ContainerInspect inspect() {
        return inspect(false);
    }

    @Override
    public ContainerInspect inspect(Boolean withSize) {
        StringBuilder sb = new StringBuilder();
        try {
            sb.append(getOperationUrl(JSON_OPERATION));
            if (withSize) {
                sb.append(Q).append(SIZE).append(EQUALS).append(withSize);
            }
            return handleGet(new URL(sb.toString()), ContainerInspect.class);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public SinceContainerOutputErrorTimestampsTailingLinesFollowDisplayInterface logs() {
        return new GetLogsOfContainer(client, config, name, null, null, null, null, null, 0, false);
    }

    @Override
    public ContainerInputOutputErrorStreamGetLogsInterface attach() {
        return new AttachContainer(client, config, name, null, null, null, null, null, null);
    }

    @Override
    public ContainerExecCreateResponse exec(ExecConfig execConfig) {
        try {
            StringBuilder sb = new StringBuilder();
            sb.append(getOperationUrl(EXEC_OPERATION));

            RequestBody body = RequestBody.create(MEDIA_TYPE_JSON, JSON_MAPPER.writeValueAsString(execConfig));
            Request.Builder builder = new Request.Builder()
                    .post(body)
                    .url(sb.toString());

            return handleResponse(builder, ContainerExecCreateResponse.class, 200, 201);
        } catch (Exception e) {
            throw DockerClientException.launderThrowable(e);
        }
    }

    @Override
    public InlineExecConfig execNew() {
        return new InlineExecConfig(new io.fabric8.docker.api.builder.Function() {
            @Override
            public ContainerExecCreateResponse apply(ExecConfig input) {
                return exec(input);
            }
        });
    }
}




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