// *************************************************************************************************************************** | |
// * 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.juneau.http.header; | |
import static org.apache.juneau.internal.ExceptionUtils.*; | |
import static org.apache.juneau.internal.StringUtils.*; | |
import java.util.function.*; | |
import org.apache.http.*; | |
import org.apache.juneau.httppart.*; | |
import org.apache.juneau.internal.*; | |
import org.apache.juneau.oapi.*; | |
import org.apache.juneau.serializer.*; | |
import org.apache.juneau.urlencoding.*; | |
/** | |
* Subclass of {@link NameValuePair} for serializing POJOs as URL-encoded form post entries using the | |
* {@link UrlEncodingSerializer class}. | |
* | |
* <h5 class='section'>Example:</h5> | |
* <p class='bcode w800'> | |
* NameValuePairs params = <jk>new</jk> NameValuePairs() | |
* .append(<jk>new</jk> SerializedNameValuePair(<js>"myPojo"</js>, pojo, UrlEncodingSerializer.<jsf>DEFAULT_SIMPLE</jsf>)) | |
* .append(<jk>new</jk> BasicNameValuePair(<js>"someOtherParam"</js>, <js>"foobar"</js>)); | |
* request.setEntity(<jk>new</jk> UrlEncodedFormEntity(params)); | |
* </p> | |
*/ | |
@FluentSetters | |
public class SerializedHeader extends BasicHeader { | |
private static final long serialVersionUID = 1L; | |
/** | |
* Convenience creator. | |
* | |
* @param name The header name. | |
* @param value | |
* The POJO to serialize as the header value. | |
* <br>Can be <jk>null</jk>. | |
* @return A new header bean, or <jk>null</jk> if the name is <jk>null</jk> or empty. | |
*/ | |
public static SerializedHeader of(String name, Object value) { | |
if (isEmpty(name)) | |
return null; | |
return new SerializedHeader(name, value, null, null, false); | |
} | |
/** | |
* Convenience creator with delayed value. | |
* | |
* <p> | |
* Header value is re-evaluated on each call to {@link #getValue()}. | |
* | |
* @param name The header name. | |
* @param value | |
* The supplier of the POJO to serialize as the header value. | |
* <br>Can be <jk>null</jk>. | |
* @return A new header bean, or <jk>null</jk> if the name is <jk>null</jk> or empty. | |
*/ | |
public static SerializedHeader of(String name, Supplier<?> value) { | |
if (isEmpty(name)) | |
return null; | |
return new SerializedHeader(name, value, null, null, false); | |
} | |
/** | |
* Convenience creator. | |
* | |
* @param name The HTTP header name name. | |
* @param value | |
* The POJO to serialize as the header value. | |
* @param serializer | |
* The serializer to use for serializing the value to a string value. | |
* @param schema | |
* The schema object that defines the format of the output. | |
* <br>If <jk>null</jk>, defaults to the schema defined on the serializer. | |
* <br>If that's also <jk>null</jk>, defaults to {@link HttpPartSchema#DEFAULT}. | |
* <br>Only used if serializer is schema-aware (e.g. {@link OpenApiSerializer}). | |
* <br>Can also be a {@link Supplier}. | |
* @param skipIfEmpty If value is a blank string, the value should return as <jk>null</jk>. | |
* @return A new header bean, or <jk>null</jk> if the name is <jk>null</jk> or empty. | |
*/ | |
public static SerializedHeader of(String name, Object value, HttpPartSerializerSession serializer, HttpPartSchema schema, boolean skipIfEmpty) { | |
if (isEmpty(name)) | |
return null; | |
return new SerializedHeader(name, value, serializer, schema, skipIfEmpty); | |
} | |
/** | |
* Convenience creator with delayed value. | |
* | |
* <p> | |
* Header value is re-evaluated on each call to {@link #getValue()}. | |
* | |
* @param name The HTTP header name name. | |
* @param value | |
* The supplier of the POJO to serialize as the header value. | |
* @param serializer | |
* The serializer to use for serializing the value to a string value. | |
* @param schema | |
* The schema object that defines the format of the output. | |
* <br>If <jk>null</jk>, defaults to the schema defined on the serializer. | |
* <br>If that's also <jk>null</jk>, defaults to {@link HttpPartSchema#DEFAULT}. | |
* <br>Only used if serializer is schema-aware (e.g. {@link OpenApiSerializer}). | |
* <br>Can also be a {@link Supplier}. | |
* @param skipIfEmpty If value is a blank string, the value should return as <jk>null</jk>. | |
* @return A new header bean, or <jk>null</jk> if the name is <jk>null</jk> or empty. | |
*/ | |
public static SerializedHeader of(String name, Supplier<?> value, HttpPartSerializerSession serializer, HttpPartSchema schema, boolean skipIfEmpty) { | |
if (isEmpty(name)) | |
return null; | |
return new SerializedHeader(name, value, serializer, schema, skipIfEmpty); | |
} | |
private final Object value; | |
private final Supplier<Object> supplier; | |
private HttpPartSerializerSession serializer; | |
private HttpPartSchema schema = HttpPartSchema.DEFAULT; | |
private boolean skipIfEmpty; | |
/** | |
* Constructor. | |
* | |
* @param name The HTTP header name name. | |
* @param value The POJO to serialize to the parameter value. | |
* @param serializer | |
* The serializer to use for serializing the value to a string value. | |
* @param schema | |
* The schema object that defines the format of the output. | |
* <br>If <jk>null</jk>, defaults to the schema defined on the serializer. | |
* <br>If that's also <jk>null</jk>, defaults to {@link HttpPartSchema#DEFAULT}. | |
* <br>Only used if serializer is schema-aware (e.g. {@link OpenApiSerializer}). | |
* <br>Can also be a {@link Supplier}. | |
* @param skipIfEmpty If value is a blank string, the value should return as <jk>null</jk>. | |
*/ | |
@SuppressWarnings("unchecked") | |
public SerializedHeader(String name, Object value, HttpPartSerializerSession serializer, HttpPartSchema schema, boolean skipIfEmpty) { | |
super(name, null); | |
this.value = value instanceof Supplier ? null : value; | |
this.supplier = value instanceof Supplier ? (Supplier<Object>)value : null; | |
this.serializer = serializer; | |
this.schema = schema; | |
this.skipIfEmpty = skipIfEmpty; | |
} | |
/** | |
* Constructor with delayed value. | |
* | |
* <p> | |
* Header value is re-evaluated on each call to {@link #getValue()}. | |
* | |
* @param name The HTTP header name name. | |
* @param value The supplier of the POJO to serialize to the parameter value. | |
* @param serializer | |
* The serializer to use for serializing the value to a string value. | |
* @param schema | |
* The schema object that defines the format of the output. | |
* <br>If <jk>null</jk>, defaults to the schema defined on the serializer. | |
* <br>If that's also <jk>null</jk>, defaults to {@link HttpPartSchema#DEFAULT}. | |
* <br>Only used if serializer is schema-aware (e.g. {@link OpenApiSerializer}). | |
* <br>Can also be a {@link Supplier}. | |
* @param skipIfEmpty If value is a blank string, the value should return as <jk>null</jk>. | |
*/ | |
public SerializedHeader(String name, Supplier<Object> value, HttpPartSerializerSession serializer, HttpPartSchema schema, boolean skipIfEmpty) { | |
super(name, null); | |
this.value = null; | |
this.supplier = value; | |
this.serializer = serializer; | |
this.schema = schema; | |
this.skipIfEmpty = skipIfEmpty; | |
} | |
/** | |
* Copy constructor. | |
* | |
* @param copyFrom The object to copy. | |
*/ | |
protected SerializedHeader(SerializedHeader copyFrom) { | |
super(copyFrom); | |
this.value = copyFrom.value; | |
this.supplier = copyFrom.supplier; | |
this.serializer = copyFrom.serializer == null ? serializer : copyFrom.serializer; | |
this.schema = copyFrom.schema == null ? schema : copyFrom.schema; | |
this.skipIfEmpty = copyFrom.skipIfEmpty; | |
} | |
/** | |
* Creates a copy of this object. | |
* | |
* @return A new copy of this object. | |
*/ | |
public SerializedHeader copy() { | |
return new SerializedHeader(this); | |
} | |
/** | |
* Sets the serializer to use for serializing the value to a string value. | |
* | |
* @param value The new value for this property. | |
* @return This object (for method chaining). | |
*/ | |
public SerializedHeader serializer(HttpPartSerializer value) { | |
if (value != null) | |
return serializer(value.createPartSession(null)); | |
return this; | |
} | |
/** | |
* Sets the serializer to use for serializing the value to a string value. | |
* | |
* @param value The new value for this property. | |
* @return This object (for method chaining). | |
*/ | |
public SerializedHeader serializer(HttpPartSerializerSession value) { | |
serializer = value; | |
return this; | |
} | |
/** | |
* Sets the schema object that defines the format of the output. | |
* | |
* @param value The new value for this property. | |
* @return This object (for method chaining). | |
*/ | |
public SerializedHeader schema(HttpPartSchema value) { | |
this.schema = value; | |
return this; | |
} | |
/** | |
* Copies this bean and sets the serializer and schema on it. | |
* | |
* @param serializer The new serializer for the bean. Can be <jk>null</jk>. | |
* @param schema The new schema for the bean. Can be <jk>null</jk>. | |
* @return Either a new bean with the serializer set, or this bean if | |
* both values are <jk>null</jk> or the serializer and schema were already set. | |
*/ | |
public SerializedHeader copyWith(HttpPartSerializerSession serializer, HttpPartSchema schema) { | |
if ((this.serializer == null && serializer != null) || (this.schema == null && schema != null)) { | |
SerializedHeader h = copy(); | |
if (serializer != null) | |
h.serializer(serializer); | |
if (schema != null) | |
h.schema(schema); | |
return h; | |
} | |
return this; | |
} | |
/** | |
* Don't serialize this header if the value is <jk>null</jk> or an empty string. | |
* | |
* @return This object (for method chaining). | |
*/ | |
public SerializedHeader skipIfEmpty() { | |
return skipIfEmpty(true); | |
} | |
/** | |
* Don't serialize this header if the value is <jk>null</jk> or an empty string. | |
* | |
* @param value The new value of this setting. | |
* @return This object (for method chaining). | |
*/ | |
public SerializedHeader skipIfEmpty(boolean value) { | |
this.skipIfEmpty = value; | |
return this; | |
} | |
@Override /* NameValuePair */ | |
public String getValue() { | |
try { | |
Object v = value; | |
if (supplier != null) | |
v = supplier.get(); | |
HttpPartSchema schema = this.schema == null ? HttpPartSchema.DEFAULT : this.schema; | |
String def = schema.getDefault(); | |
if (v == null) { | |
if (def == null && ! schema.isRequired()) | |
return null; | |
if (def == null && schema.isAllowEmptyValue()) | |
return null; | |
} | |
if (isEmpty(v) && skipIfEmpty && def == null) | |
return null; | |
return serializer == null ? stringify(v) : serializer.serialize(HttpPartType.HEADER, schema, v); | |
} catch (SchemaValidationException e) { | |
throw runtimeException(e, "Validation error on request {0} parameter ''{1}''=''{2}''", HttpPartType.HEADER, getName(), value); | |
} catch (SerializeException e) { | |
throw runtimeException(e, "Serialization error on request {0} parameter ''{1}''", HttpPartType.HEADER, getName()); | |
} | |
} | |
// <FluentSetters> | |
// </FluentSetters> | |
} |