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Merge pull request apereo#741 from Unicon/json-serialization-ldapmapper
JSON serialization of RegisteredService into LDAP
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171 changes: 171 additions & 0 deletions
171
cas-server-core/src/main/java/org/jasig/cas/util/AbstractJacksonBackedJsonSerializer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * Licensed to Apereo under one or more contributor license | ||
| * agreements. See the NOTICE file distributed with this work | ||
| * for additional information regarding copyright ownership. | ||
| * Apereo 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 the following location: | ||
| * | ||
| * 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.jasig.cas.util; | ||
|
|
||
| import com.fasterxml.jackson.annotation.JsonAutoDetect; | ||
| import com.fasterxml.jackson.annotation.JsonTypeInfo; | ||
| import com.fasterxml.jackson.annotation.PropertyAccessor; | ||
| import com.fasterxml.jackson.core.PrettyPrinter; | ||
| import com.fasterxml.jackson.core.util.DefaultPrettyPrinter; | ||
| import com.fasterxml.jackson.databind.ObjectMapper; | ||
| import com.fasterxml.jackson.databind.SerializationFeature; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
|
||
| import java.io.File; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
| import java.io.Reader; | ||
| import java.io.Writer; | ||
|
|
||
| /** | ||
| * Generic class to serialize objects to/from JSON based on jackson. | ||
| * @author Misagh Moayyed | ||
| * @since 4.1 | ||
| */ | ||
| public abstract class AbstractJacksonBackedJsonSerializer<T> implements JsonSerializer<T> { | ||
| private static final long serialVersionUID = -8415599777321259365L; | ||
|
|
||
| private static final Logger LOGGER = LoggerFactory.getLogger(AbstractJacksonBackedJsonSerializer.class); | ||
|
|
||
| /** | ||
| * The Pretty printer. | ||
| */ | ||
| private final PrettyPrinter prettyPrinter; | ||
|
|
||
| /** | ||
| * The Object mapper. | ||
| */ | ||
| private final ObjectMapper objectMapper; | ||
|
|
||
| /** | ||
| * Instantiates a new Registered service json serializer. | ||
| * Uses the {@link com.fasterxml.jackson.core.util.DefaultPrettyPrinter} for formatting. | ||
| */ | ||
| public AbstractJacksonBackedJsonSerializer() { | ||
| this(new DefaultPrettyPrinter()); | ||
| } | ||
|
|
||
| /** | ||
| * Instantiates a new Registered service json serializer. | ||
| * | ||
| * @param prettyPrinter the pretty printer | ||
| */ | ||
| public AbstractJacksonBackedJsonSerializer(final PrettyPrinter prettyPrinter) { | ||
| this.objectMapper = initializeObjectMapper(); | ||
| this.prettyPrinter = prettyPrinter; | ||
| } | ||
|
|
||
| /** | ||
| * Instantiates a new Registered service json serializer. | ||
| * | ||
| * @param objectMapper the object mapper | ||
| * @param prettyPrinter the pretty printer | ||
| */ | ||
| public AbstractJacksonBackedJsonSerializer(final ObjectMapper objectMapper, final PrettyPrinter prettyPrinter) { | ||
| this.objectMapper = objectMapper; | ||
| this.prettyPrinter = prettyPrinter; | ||
| } | ||
|
|
||
| @Override | ||
| public T fromJson(final String json) { | ||
| try { | ||
| return this.objectMapper.readValue(json, getTypeToSerialize()); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public T fromJson(final File json) { | ||
| try { | ||
| return this.objectMapper.readValue(json, getTypeToSerialize()); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public T fromJson(final Reader json) { | ||
| try { | ||
| return this.objectMapper.readValue(json, getTypeToSerialize()); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public T fromJson(final InputStream json) { | ||
| try { | ||
|
|
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| return this.objectMapper.readValue(json, getTypeToSerialize()); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void toJson(final OutputStream out, final T object) { | ||
| try { | ||
| this.objectMapper.writer(this.prettyPrinter).writeValue(out, object); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public void toJson(final Writer out, final T object) { | ||
| try { | ||
| this.objectMapper.writer(this.prettyPrinter).writeValue(out, object); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void toJson(final File out, final T object) { | ||
| try { | ||
| this.objectMapper.writer(this.prettyPrinter).writeValue(out, object); | ||
| } catch (final Exception e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * Initialize object mapper. | ||
| * | ||
| * @return the object mapper | ||
| */ | ||
| protected ObjectMapper initializeObjectMapper() { | ||
| final ObjectMapper mapper = new ObjectMapper(); | ||
| mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false); | ||
| mapper.setVisibility(PropertyAccessor.SETTER, JsonAutoDetect.Visibility.PROTECTED_AND_PUBLIC); | ||
| mapper.setVisibility(PropertyAccessor.GETTER, JsonAutoDetect.Visibility.PROTECTED_AND_PUBLIC); | ||
| mapper.setVisibility(PropertyAccessor.IS_GETTER, JsonAutoDetect.Visibility.PROTECTED_AND_PUBLIC); | ||
| mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY); | ||
| return mapper; | ||
| } | ||
|
|
||
| /** | ||
| * Gets type to serialize. | ||
| * | ||
| * @return the type to serialize | ||
| */ | ||
| protected abstract Class<T> getTypeToSerialize(); | ||
| } |
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