Initial code import

[msb/apigateway.git] / apiroute / apiroute-service / src / main / java / org / openo / msb / wrapper / consul / util / Base64EncodingDeserializer.java

diff --git a/apiroute/apiroute-service/src/main/java/org/openo/msb/wrapper/consul/util/Base64EncodingDeserializer.java b/apiroute/apiroute-service/src/main/java/org/openo/msb/wrapper/consul/util/Base64EncodingDeserializer.java
new file mode 100644 (file)
index 0000000..58af732
--- /dev/null
+++ b/apiroute/apiroute-service/src/main/java/org/openo/msb/wrapper/consul/util/Base64EncodingDeserializer.java
@@ -0,0 +1,45 @@
+/**
+* Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
+*
+* 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 org.openo.msb.wrapper.consul.util;
+
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.google.common.base.Optional;
+import com.google.common.io.BaseEncoding;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.IOException;
+
+/**
+ * For use with JSON fields that Consul Base 64 encodes.
+ */
+public class Base64EncodingDeserializer extends JsonDeserializer<Optional<String>> {
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public Optional<String> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {
+        String value = p.getValueAsString();
+
+        if (StringUtils.isNotEmpty(value)) {
+            return Optional.of(new String(BaseEncoding.base64().decode(value)));
+        }
+        return Optional.absent();
+    }
+}