Diff: dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/framework/message/Directive.java

Revision:

45:2aa9f933c8d2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dcs-sdk-java-master/app/src/main/java/com/baidu/duer/dcs/framework/message/Directive.java	Tue Jul 18 16:34:48 2017 +0800
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2017 Baidu, Inc. All Rights Reserved.
+ * 
+ * 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.baidu.duer.dcs.framework.message;
+
+import com.baidu.duer.dcs.util.ObjectMapperUtil;
+
+import org.codehaus.jackson.JsonNode;
+import org.codehaus.jackson.JsonParseException;
+import org.codehaus.jackson.JsonParser;
+import org.codehaus.jackson.annotate.JsonIgnore;
+import org.codehaus.jackson.map.DeserializationContext;
+import org.codehaus.jackson.map.JsonDeserializer;
+import org.codehaus.jackson.map.JsonMappingException;
+import org.codehaus.jackson.map.ObjectReader;
+import org.codehaus.jackson.map.annotate.JsonDeserialize;
+import org.codehaus.jackson.node.ObjectNode;
+
+import java.io.IOException;
+import java.util.Iterator;
+import java.util.Map;
+
+/**
+ * 指令类：服务端下发给设备端去执行
+ * <p>
+ * Created by wuruisheng on 2017/5/31.
+ */
+@JsonDeserialize(using = Directive.DirectiveDeserializer.class)
+public class Directive {
+    public Header header;
+    public Payload payload;
+
+    @JsonIgnore
+    public String rawMessage;
+
+
+    public Directive(Header header, JsonNode payload, String rawMessage) throws IOException {
+        this.header = header;
+        String namespace = header.getNamespace();
+        String name = header.getName();
+        Class<?> payloadType = PayloadConfig.getInstance().findPayloadClass(namespace, name);
+        if (null != payloadType) {
+            this.payload = ObjectMapperUtil.instance().getObjectReader().withType(payloadType).readValue(payload);
+        } else {
+            this.payload = new Payload();
+        }
+
+        this.rawMessage = rawMessage;
+    }
+
+    /**
+     * jackson反序列化directive对象
+     */
+    public static class DirectiveDeserializer extends JsonDeserializer<Directive> {
+        @Override
+        public Directive deserialize(JsonParser jp, DeserializationContext ctx)
+                throws IOException {
+            ObjectReader reader = ObjectMapperUtil.instance().getObjectReader();
+            ObjectNode obj = (ObjectNode) reader.readTree(jp);
+            Iterator<Map.Entry<String, JsonNode>> elementsIterator = obj.getFields();
+
+            String rawMessage = obj.toString();
+            DialogRequestIdHeader header = null;
+            JsonNode payloadNode = null;
+            ObjectReader headerReader =
+                    ObjectMapperUtil.instance().getObjectReader(DialogRequestIdHeader.class);
+            while (elementsIterator.hasNext()) {
+                Map.Entry<String, JsonNode> element = elementsIterator.next();
+                if (element.getKey().equals("header")) {
+                    header = headerReader.readValue(element.getValue());
+                }
+                if (element.getKey().equals("payload")) {
+                    payloadNode = element.getValue();
+                }
+            }
+            if (header == null) {
+                throw ctx.mappingException("Missing header");
+            }
+            if (payloadNode == null) {
+                throw ctx.mappingException("Missing payload");
+            }
+
+            return createDirective(header, payloadNode, rawMessage);
+        }
+
+        private Directive createDirective(Header header, JsonNode payload, String rawMessage)
+                throws JsonParseException, JsonMappingException, IOException {
+            return new Directive(header, payload, rawMessage);
+        }
+    }
+
+    @JsonIgnore
+    public String getName() {
+        return header.getName();
+    }
+
+    public Payload getPayload() {
+        return payload;
+    }
+}
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