/*
* 2012-3 Red Hat Inc. and/or its affiliates and other contributors.
*
* 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.overlord.rtgov.active.collection.util;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.core.type.TypeReference;
import org.overlord.rtgov.active.collection.ActiveCollectionSource;
import org.overlord.rtgov.active.collection.QuerySpec;
/**
* This class provides utility functions for the Active Collection
* model.
*
*/
public final class ActiveCollectionUtil {
private static final ObjectMapper MAPPER=new ObjectMapper();
private static final TypeReference<java.util.List<ActiveCollectionSource>> TYPEREF=
new TypeReference<java.util.List<ActiveCollectionSource>>() { };
static {
MAPPER.enable(SerializationFeature.INDENT_OUTPUT);
}
/**
* Private constructor.
*/
private ActiveCollectionUtil() {
}
/**
* This method serializes a list of Active Collection Sources
* into a JSON representation.
*
* @param acs The active collection source list
* @return The JSON serialized representation
* @throws Exception Failed to serialize
*/
public static byte[] serializeACS(java.util.List<ActiveCollectionSource> acs) throws Exception {
byte[] ret=null;
java.io.ByteArrayOutputStream baos=new java.io.ByteArrayOutputStream();
MAPPER.writeValue(baos, acs);
ret = baos.toByteArray();
baos.close();
return (ret);
}
/**
* This method deserializes a list of Active Collection Sources from a JSON representation.
*
* @param acs The JSON representation of the Active Collection Sources
* @return The Active Collection Source list
* @throws Exception Failed to deserialize
*/
@SuppressWarnings("unchecked")
public static java.util.List<ActiveCollectionSource> deserializeACS(byte[] acs) throws Exception {
java.util.List<ActiveCollectionSource> ret=null;
java.io.ByteArrayInputStream bais=new java.io.ByteArrayInputStream(acs);
ret = (java.util.List<ActiveCollectionSource>)MAPPER.readValue(bais, TYPEREF);
bais.close();
return (ret);
}
/**
* This method serializes a query specification
* into a JSON representation.
*
* @param qs The query spec
* @return The JSON serialized representation
* @throws Exception Failed to serialize
*/
public static byte[] serializeQuerySpec(QuerySpec qs) throws Exception {
byte[] ret=null;
java.io.ByteArrayOutputStream baos=new java.io.ByteArrayOutputStream();
MAPPER.writeValue(baos, qs);
ret = baos.toByteArray();
baos.close();
return (ret);
}
/**
* This method deserializes a query specification from a JSON representation.
*
* @param qs The JSON representation of the query spec
* @return The query spec
* @throws Exception Failed to deserialize
*/
public static QuerySpec deserializeQuerySpec(byte[] qs) throws Exception {
QuerySpec ret=null;
java.io.ByteArrayInputStream bais=new java.io.ByteArrayInputStream(qs);
ret = (QuerySpec)MAPPER.readValue(bais, QuerySpec.class);
bais.close();
return (ret);
}
}