add cmd-answer classes

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>

core/src/main/java/org/apache/cloudstack/backup/BackupAnswer.java

@@ -0,0 +1,59 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.apache.cloudstack.backup;
+
+import com.cloud.agent.api.Answer;
+
+public class BackupAnswer extends Answer {
+    Long size;
+    Long virtualSize;
+    String path;
+
+    public BackupAnswer(TakeBackupCommand command, Long size, Long virtualSize, String path) {
+        super(command);
+        this.size = size;
+        this.virtualSize = virtualSize;
+        this.path = path;
+    }
+
+    public Long getSize() {
+        return size;
+    }
+
+    public void setSize(Long size) {
+        this.size = size;
+    }
+
+    public Long getVirtualSize() {
+        return virtualSize;
+    }
+
+    public void setVirtualSize(Long virtualSize) {
+        this.virtualSize = virtualSize;
+    }
+
+    public String getPath() {
+        return path;
+    }
+
+    public void setPath(String path) {
+        this.path = path;
+    }
+}

core/src/main/java/org/apache/cloudstack/backup/TakeBackupCommand.java

@@ -0,0 +1,68 @@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you 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.apache.cloudstack.backup;
+
+import com.cloud.agent.api.Command;
+import com.cloud.agent.api.LogLevel;
+
+import java.util.Map;
+
+public class TakeBackupCommand extends Command {
+    private String vmName;
+    private String backupStoragePath;
+    @LogLevel(LogLevel.Log4jLevel.Off)
+    private Map<String, String> details;
+
+    public TakeBackupCommand(String vmName, String backupStoragePath, Map<String, String> details) {
+        super();
+        this.vmName = vmName;
+        this.backupStoragePath = backupStoragePath;
+        this.details = details;
+    }
+
+    public String getVmName() {
+        return vmName;
+    }
+
+    public void setVmName(String vmName) {
+        this.vmName = vmName;
+    }
+
+    public String getBackupStoragePath() {
+        return backupStoragePath;
+    }
+
+    public void setBackupStoragePath(String backupStoragePath) {
+        this.backupStoragePath = backupStoragePath;
+    }
+
+    public Map<String, String> getDetails() {
+        return details;
+    }
+
+    public void setDetails(Map<String, String> details) {
+        this.details = details;
+    }
+
+    @Override
+    public boolean executeInSequence() {
+        return true;
+    }
+}