fix eclipse-che#3967 : replace WSMaster Machine API by Exec Agent calls

Change-Id: I67e9d668516bf634c47e72653086e93ef34d5fe9
Signed-off-by: Florent BENOIT <fbenoit@codenvy.com>

dockerfiles/lib/dto-pom.xml

@@ -83,11 +83,6 @@
                         <artifactId>che-core-api-git-shared</artifactId>
                         <version>${che.version}</version>
                     </dependency>
-                    <dependency>
-                        <groupId>org.eclipse.che.core</groupId>
-                        <artifactId>che-core-api-machine-shared</artifactId>
-                        <version>${che.version}</version>
-                    </dependency>
                     <dependency>
                         <groupId>org.eclipse.che.core</groupId>
                         <artifactId>che-core-api-project-shared</artifactId>

dockerfiles/lib/src/api/exec-agent/exec-agent-service-client.ts

@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2016-2016 Codenvy, S.A.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Codenvy, S.A. - initial API and implementation
+ */
+import {org} from "../../api/dto/che-dto";
+import {ProcessTerminatedEventPromiseMessageBusSubscriber} from "./process-terminated-event-promise-subscriber";
+import {AuthData} from "../wsmaster/auth/auth-data";
+import {Websocket} from "../../spi/websocket/websocket";
+import {Workspace} from "../wsmaster/workspace/workspace";
+import {CheFileStructWorkspaceCommand} from "../../internal/dir/chefile-struct/che-file-struct";
+import {Log} from "../../spi/log/log";
+import {JsonRpcBus} from "../../spi/websocket/json-rpc-bus";
+import {ProcessAckPromiseMessageBusSubscriber} from "./process-ack-event-promise-subscriber";
+
+/**
+ * Exec Agent service allowing to start/stop processes
+ * @author Florent Benoit
+ */
+export class ExecAgentServiceClientImpl {
+
+    /**
+     * Authentication data
+     */
+    authData : AuthData;
+
+    /**
+     * websocket.
+     */
+    websocket : Websocket;
+
+    workspace : Workspace;
+
+    constructor(workspace : Workspace, authData : AuthData) {
+        this.workspace = workspace;
+        this.authData = authData;
+        this.websocket = new Websocket();
+    }
+
+    getJsonRpcBus(workspaceDto : org.eclipse.che.api.workspace.shared.dto.WorkspaceDto): Promise<JsonRpcBus> {
+        var protocol:string;
+        if (this.authData.isSecured()) {
+            protocol = 'wss';
+        } else {
+            protocol = 'ws';
+        }
+
+        // get links for WS
+        var link:string = protocol + '://' + this.authData.hostname + ":" + this.authData.port + '/connect';
+
+        return this.websocket.getJsonRpcBus(link + '?token=' + this.authData.getToken());
+    }
+
+    /**
+     * Create a workspace and return a promise with content of WorkspaceDto in case of success
+     */
+    executeCommand(workspaceDto : org.eclipse.che.api.workspace.shared.dto.WorkspaceDto,
+                   machineId:string,
+                   cheFileStructWorkspaceCommand:CheFileStructWorkspaceCommand,
+                   uuid:string,
+                   asynchronous : boolean = true):Promise<boolean> {
+
+        let rpcCommand: any =
+            {
+                "jsonrpc": "2.0",
+                "method": "process.start",
+                "id": uuid,
+                "params": {
+                    "commandLine": cheFileStructWorkspaceCommand.commandLine,
+                    "name": !cheFileStructWorkspaceCommand.name ? "custom-command" : cheFileStructWorkspaceCommand.name,
+                    "type": !cheFileStructWorkspaceCommand.type ? "custom" : cheFileStructWorkspaceCommand.type
+                }
+            };
+
+        // get JSON RPC Bus
+        let processTerminatedEventPromiseMessageBusSubscriber : ProcessTerminatedEventPromiseMessageBusSubscriber;
+        let userJsonRpcBus : JsonRpcBus;
+        return this.getJsonRpcBus(workspaceDto).then((jsonRpcBus:JsonRpcBus) => {
+            userJsonRpcBus = jsonRpcBus;
+            processTerminatedEventPromiseMessageBusSubscriber = new ProcessTerminatedEventPromiseMessageBusSubscriber(jsonRpcBus);
+            let processAckPromiseMessageBusSubscriber : ProcessAckPromiseMessageBusSubscriber = new ProcessAckPromiseMessageBusSubscriber(uuid, jsonRpcBus, asynchronous, processTerminatedEventPromiseMessageBusSubscriber);
+            jsonRpcBus.subscribe(processAckPromiseMessageBusSubscriber);
+            jsonRpcBus.send(rpcCommand);
+            return processAckPromiseMessageBusSubscriber.promise;
+        }).then(() => {
+            // subscribe to pid event end
+            if (asynchronous) {
+                return processTerminatedEventPromiseMessageBusSubscriber.promise;
+            } else {
+                // do not wait the end
+                userJsonRpcBus.close();
+                return Promise.resolve(true);
+            }
+        }).then(() => {
+            return true;
+        });
+
+    }
+
+}

dockerfiles/lib/src/api/exec-agent/process-ack-event-promise-subscriber.ts

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2016-2016 Codenvy, S.A.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Codenvy, S.A. - initial API and implementation
+ */
+
+import {MessageBusSubscriber} from "../../spi/websocket/messagebus-subscriber";
+import {ProcessTerminatedEventPromiseMessageBusSubscriber} from "./process-terminated-event-promise-subscriber";
+import {JsonRpcBus} from "../../spi/websocket/json-rpc-bus";
+import {ProcesLogOutputMessageBusSubscriber} from "./process-log-output-subscriber";
+import {Log} from "../../spi/log/log";
+/**
+ * Handle a promise that will be resolved when process/command is finished.
+ * If process has error, promise will be rejected
+ * @author Florent Benoit
+ */
+export class ProcessAckPromiseMessageBusSubscriber implements MessageBusSubscriber {
+
+    resolve : any;
+    reject : any;
+    promise: Promise<boolean>;
+    private id : string;
+    private processTerminatedEventPromiseMessageBusSubscriber : ProcessTerminatedEventPromiseMessageBusSubscriber;
+    private asynchronous : boolean;
+    private jsonRpcBus : JsonRpcBus;
+
+    constructor(id: string, jsonRpcBus : JsonRpcBus, asynchronous : boolean, processTerminatedEventPromiseMessageBusSubscriber : ProcessTerminatedEventPromiseMessageBusSubscriber) {
+        this.id = id;
+        this.jsonRpcBus = jsonRpcBus;
+        this.asynchronous = asynchronous;
+        this.processTerminatedEventPromiseMessageBusSubscriber = processTerminatedEventPromiseMessageBusSubscriber;
+        this.promise = new Promise<boolean>((resolve, reject) => {
+            this.resolve = resolve;
+            this.reject = reject;
+        });
+    }
+
+    handleMessage(event: any) {
+        if (event.id && event.id === this.id) {
+            if (event.result) {
+                this.processTerminatedEventPromiseMessageBusSubscriber.setPid(event.result.pid);
+                // subscribe to websocket
+                if (this.asynchronous) {
+                    this.jsonRpcBus.subscribe(new ProcesLogOutputMessageBusSubscriber(event.result.pid));
+                    this.jsonRpcBus.subscribe(this.processTerminatedEventPromiseMessageBusSubscriber);
+                }
+                this.resolve(true);
+            } else if (event.error) {
+                this.reject(event.error);
+            }
+        }
+    }
+
+}

dockerfiles/lib/src/api/wsmaster/machine/process-log-output-subscriber.ts → dockerfiles/lib/src/api/exec-agent/process-log-output-subscriber.ts

@@ -9,22 +9,28 @@
  *   Codenvy, S.A. - initial API and implementation
  */
 
-import {MessageBusSubscriber} from "../../../spi/websocket/messagebus-subscriber";
-import {StringUtils} from "../../../utils/string-utils";
-import {Log} from "../../../spi/log/log";
+import {MessageBusSubscriber} from "../../spi/websocket/messagebus-subscriber";
+import {Log} from "../../spi/log/log";
 /**
  * Class that will display to console all process output messages.
  * @author Florent Benoit
  */
 export class ProcesLogOutputMessageBusSubscriber implements MessageBusSubscriber {
 
-    handleMessage(message: string) {
-        if (StringUtils.startsWith(message, '[STDOUT] ')) {
-            console.log(Log.GREEN + message.substr('[STDOUT] '.length) + Log.NC);
-        } else if (StringUtils.startsWith(message, '[STDERR] ')) {
-            console.log(Log.RED + message.substr('[STDERR] '.length) + Log.NC);
-        } else {
-            console.log(message);
+    private id : string;
+
+
+    constructor(id : string) {
+        this.id = id;
+    }
+
+    handleMessage(event: any) {
+        if (event.params && event.params.pid === this.id) {
+            if (event.method === "process_stdout") {
+                console.log(Log.GREEN + event.params.text + Log.NC);
+            } else if (event.method === "process_stderr") {
+                console.log(Log.RED + event.params.text + Log.NC);
+            }
         }
     }
 }

dockerfiles/lib/src/api/exec-agent/process-terminated-event-promise-subscriber.ts

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2016-2016 Codenvy, S.A.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Codenvy, S.A. - initial API and implementation
+ */
+
+import {MessageBusSubscriber} from "../../spi/websocket/messagebus-subscriber";
+import {Log} from "../../spi/log/log";
+import {JsonRpcBus} from "../../spi/websocket/json-rpc-bus";
+/**
+ * Handle a promise that will be resolved when process/command is finished.
+ * If process has error, promise will be rejected
+ * @author Florent Benoit
+ */
+export class ProcessTerminatedEventPromiseMessageBusSubscriber implements MessageBusSubscriber {
+
+    resolve : any;
+    reject : any;
+    promise: Promise<boolean>;
+    private pid : number;
+    private jsonRpcBus;
+
+    constructor(jsonRpcBus : JsonRpcBus) {
+        this.jsonRpcBus = jsonRpcBus;
+        this.promise = new Promise<boolean>((resolve, reject) => {
+            this.resolve = resolve;
+            this.reject = reject;
+        });
+    }
+
+    handleMessage(event: any) {
+        if (this.pid) {
+            if ('process_died' === event.method && event.params && event.params.pid === this.pid) {
+                this.jsonRpcBus.close();
+                this.resolve(true);
+            }
+        }
+    }
+
+    setPid(pid : number) {
+        this.pid = pid;
+    }
+
+}