src/org/apache/axis/encoding/ser/SimpleSerializer.java - axis-axis1-java - Git at Google

 /*
  * Copyright 2001-2004 The Apache Software Foundation.
  *
  * 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.apache.axis.encoding.ser;

 import org.apache.axis.AxisFault;
 import org.apache.axis.Constants;
 import org.apache.axis.description.FieldDesc;
 import org.apache.axis.description.TypeDesc;
 import org.apache.axis.encoding.SerializationContext;
 import org.apache.axis.encoding.SimpleValueSerializer;
 import org.apache.axis.encoding.SimpleType;
 import org.apache.axis.utils.BeanPropertyDescriptor;
 import org.apache.axis.utils.BeanUtils;
 import org.apache.axis.utils.Messages;
 import org.apache.axis.utils.JavaUtils;
 import org.apache.axis.wsdl.fromJava.Types;
 import org.w3c.dom.Element;
 import org.xml.sax.Attributes;
 import org.xml.sax.helpers.AttributesImpl;

 import javax.xml.namespace.QName;
 import java.io.IOException;

 /**
  * Serializer for primitives and anything simple whose value is obtained with toString()
  *
  * @author Rich Scheuerle <dims@yahoo.com>
  */
 public class SimpleSerializer implements SimpleValueSerializer {
     public QName xmlType;
     public Class javaType;

     private BeanPropertyDescriptor[] propertyDescriptor = null;
     private TypeDesc typeDesc = null;
     public static final String VALUE_PROPERTY = "_value";

     public SimpleSerializer(Class javaType, QName xmlType) {
         this.xmlType = xmlType;
         this.javaType = javaType;
         init();
     }
     public SimpleSerializer(Class javaType, QName xmlType, TypeDesc typeDesc) {
         this.xmlType = xmlType;
         this.javaType = javaType;
         this.typeDesc = typeDesc;
         init();
     }

    /**
     * Initialize the typeDesc and propertyDescriptor array.
     */
     private void init() {
         // Set the typeDesc if not already set
         if (typeDesc == null) {
             typeDesc = TypeDesc.getTypeDescForClass(javaType);
         }
         // Get the cached propertyDescriptor from the type or
         // generate a fresh one.
         if (typeDesc != null) {
             propertyDescriptor = typeDesc.getPropertyDescriptors();
         } else if (!JavaUtils.isBasic(javaType)) {
             propertyDescriptor = BeanUtils.getPd(javaType, null);
         }
     }

     /**
      * Serialize a primitive or simple value.
      * If the object to serialize is a primitive, the Object value below
      * is the associated java.lang class.
      * To determine if the original value is a java.lang class or a primitive, consult
      * the javaType class.
      */
     public void serialize(QName name, Attributes attributes,
                           Object value, SerializationContext context)
         throws IOException
     {
         if (value != null && value.getClass() == java.lang.Object.class) {
             throw new IOException(Messages.getMessage("cantSerialize02"));
         }

         // get any attributes
         attributes = getObjectAttributes(value, attributes, context);

         String valueStr = null;
         if (value != null) {
             valueStr = getValueAsString(value, context);
         }
         context.startElement(name, attributes);
         if (valueStr != null) {
             context.writeSafeString(valueStr);
         }
         context.endElement();
     }

     public String getValueAsString(Object value, SerializationContext context) {
         // We could have separate serializers/deserializers to take
         // care of Float/Double cases, but it makes more sence to
         // put them here with the rest of the java lang primitives.
         if (value instanceof Float ||
             value instanceof Double) {
             double data = 0.0;
             if (value instanceof Float) {
                 data = ((Float) value).doubleValue();
             } else {
                 data = ((Double) value).doubleValue();
             }
             if (Double.isNaN(data)) {
                 return "NaN";
             } else if (data == Double.POSITIVE_INFINITY) {
                 return "INF";
             } else if (data == Double.NEGATIVE_INFINITY) {
                 return "-INF";
             }
         } else if (value instanceof QName) {
             return context.qName2String((QName)value);
         }

         if (propertyDescriptor != null && !(value instanceof SimpleType)) {
             BeanPropertyDescriptor pd = BeanUtils.getSpecificPD(propertyDescriptor, "_value");
             if(pd != null) {
                 try {
                     return pd.get(value).toString();
                 } catch (Exception e) {
                 }
             }
         }
         return value.toString();
     }

     private Attributes getObjectAttributes(Object value,
                                            Attributes attributes,
                                            SerializationContext context) {
         if (typeDesc != null && !typeDesc.hasAttributes())
             return attributes;

         AttributesImpl attrs;
         if (attributes == null) {
             attrs = new AttributesImpl();
         } else if (attributes instanceof AttributesImpl) {
             attrs = (AttributesImpl)attributes;
         } else {
             attrs = new AttributesImpl(attributes);
         }

         try {
             // Find each property that is an attribute
             // and add it to our attribute list
             for (int i = 0;
                  propertyDescriptor != null && i < propertyDescriptor.length;
                  i++) {
                 String propName = propertyDescriptor[i].getName();
                 if (propName.equals("class"))
                     continue;

                 QName qname = null;
                 if(typeDesc != null) {
                     FieldDesc field = typeDesc.getFieldByName(propName);
                     // skip it if its not an attribute
                     if (field == null || field.isElement())
                         continue;
                     qname = field.getXmlName();
                 } else {
                     if(propName.equals(VALUE_PROPERTY))
                         continue;
                 }
                 if (qname == null) {
                     qname = new QName("", propName);
                 }

                 if (propertyDescriptor[i].isReadable() &&
                     !propertyDescriptor[i].isIndexed()) {
                     // add to our attributes
                     Object propValue = propertyDescriptor[i].get(value);
                     // If the property value does not exist, don't serialize
                     // the attribute.  In the future, the decision to serializer
                     // the attribute may be more sophisticated.  For example, don't
                     // serialize if the attribute matches the default value.
                     if (propValue != null) {
                         String propString = getValueAsString(propValue, context);

                         String namespace = qname.getNamespaceURI();
                         String localName = qname.getLocalPart();

                         attrs.addAttribute(namespace,
                                            localName,
                                            context.qName2String(qname),
                                            "CDATA",
                                            propString);
                     }
                 }
             }
         } catch (Exception e) {
             // no attributes
             return attrs;
         }

         return attrs;
     }

     public String getMechanismType() { return Constants.AXIS_SAX; }

     /**
      * Return XML schema for the specified type, suitable for insertion into
      * the &lt;types&gt; element of a WSDL document, or underneath an
      * &lt;element&gt; or &lt;attribute&gt; declaration.
      *
      * @param javaType the Java Class we're writing out schema for
      * @param types the Java2WSDL Types object which holds the context
      *              for the WSDL being generated.
      * @return a type element containing a schema simpleType/complexType
      * @see org.apache.axis.wsdl.fromJava.Types
      */
     public Element writeSchema(Class javaType, Types types) throws Exception {
         // ComplexType representation of SimpleType bean class
         Element complexType = types.createElement("complexType");
         types.writeSchemaTypeDecl(xmlType, complexType);
         complexType.setAttribute("name", xmlType.getLocalPart());

         // Produce simpleContent extending base type.
         Element simpleContent = types.createElement("simpleContent");
         complexType.appendChild(simpleContent);
         Element extension = types.createElement("extension");
         simpleContent.appendChild(extension);

         // Get the base type from the "value" element of the bean
         String base = "string";
         for (int i=0; propertyDescriptor != null && i<propertyDescriptor.length; i++) {
             String propName = propertyDescriptor[i].getName();
             if (!propName.equals("value")) {
                 if (typeDesc != null) {
                     FieldDesc field = typeDesc.getFieldByName(propName);
                     if (field != null) {
                         if (field.isElement()) {
                             // throw?
                         }
                         QName qname = field.getXmlName();
                         if (qname == null) {
                             // Use the default...
                             qname = new QName("", propName);
                         }

                         //  write attribute element
                         Class fieldType = propertyDescriptor[i].getType();

                         // Attribute must be a simple type, enum or SimpleType
                         if (!types.isAcceptableAsAttribute(fieldType)) {
                             throw new AxisFault(Messages.getMessage("AttrNotSimpleType00",
                                     propName,
                                     fieldType.getName()));
                         }

                         // write attribute element
                         // TODO the attribute name needs to be preserved from the XML
                         Element elem = types.createAttributeElement(propName,
                                 fieldType,
                                 field.getXmlType(),
                                 false,
                                 extension.getOwnerDocument());
                         extension.appendChild(elem);
                     }
                 }
                 continue;
             }

             BeanPropertyDescriptor bpd = propertyDescriptor[i];
             Class type = bpd.getType();
             // Attribute must extend a simple type, enum or SimpleType
             if (!types.isAcceptableAsAttribute(type)) {
                 throw new AxisFault(Messages.getMessage("AttrNotSimpleType01",
                         type.getName()));
             }
             base = types.writeType(type);
             extension.setAttribute("base", base);
         }

         // done
         return complexType;

     }
 }
	/*
	* Copyright 2001-2004 The Apache Software Foundation.
	*
	* 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.apache.axis.encoding.ser;

	import org.apache.axis.AxisFault;
	import org.apache.axis.Constants;
	import org.apache.axis.description.FieldDesc;
	import org.apache.axis.description.TypeDesc;
	import org.apache.axis.encoding.SerializationContext;
	import org.apache.axis.encoding.SimpleValueSerializer;
	import org.apache.axis.encoding.SimpleType;
	import org.apache.axis.utils.BeanPropertyDescriptor;
	import org.apache.axis.utils.BeanUtils;
	import org.apache.axis.utils.Messages;
	import org.apache.axis.utils.JavaUtils;
	import org.apache.axis.wsdl.fromJava.Types;
	import org.w3c.dom.Element;
	import org.xml.sax.Attributes;
	import org.xml.sax.helpers.AttributesImpl;

	import javax.xml.namespace.QName;
	import java.io.IOException;

	/**
	* Serializer for primitives and anything simple whose value is obtained with toString()
	*
	* @author Rich Scheuerle <dims@yahoo.com>
	*/
	public class SimpleSerializer implements SimpleValueSerializer {
	public QName xmlType;
	public Class javaType;

	private BeanPropertyDescriptor[] propertyDescriptor = null;
	private TypeDesc typeDesc = null;
	public static final String VALUE_PROPERTY = "_value";

	public SimpleSerializer(Class javaType, QName xmlType) {
	this.xmlType = xmlType;
	this.javaType = javaType;
	init();
	}
	public SimpleSerializer(Class javaType, QName xmlType, TypeDesc typeDesc) {
	this.xmlType = xmlType;
	this.javaType = javaType;
	this.typeDesc = typeDesc;
	init();
	}

	/**
	* Initialize the typeDesc and propertyDescriptor array.
	*/
	private void init() {
	// Set the typeDesc if not already set
	if (typeDesc == null) {
	typeDesc = TypeDesc.getTypeDescForClass(javaType);
	}
	// Get the cached propertyDescriptor from the type or
	// generate a fresh one.
	if (typeDesc != null) {
	propertyDescriptor = typeDesc.getPropertyDescriptors();
	} else if (!JavaUtils.isBasic(javaType)) {
	propertyDescriptor = BeanUtils.getPd(javaType, null);
	}
	}

	/**
	* Serialize a primitive or simple value.
	* If the object to serialize is a primitive, the Object value below
	* is the associated java.lang class.
	* To determine if the original value is a java.lang class or a primitive, consult
	* the javaType class.
	*/
	public void serialize(QName name, Attributes attributes,
	Object value, SerializationContext context)
	throws IOException
	{
	if (value != null && value.getClass() == java.lang.Object.class) {
	throw new IOException(Messages.getMessage("cantSerialize02"));
	}

	// get any attributes
	attributes = getObjectAttributes(value, attributes, context);

	String valueStr = null;
	if (value != null) {
	valueStr = getValueAsString(value, context);
	}
	context.startElement(name, attributes);
	if (valueStr != null) {
	context.writeSafeString(valueStr);
	}
	context.endElement();
	}

	public String getValueAsString(Object value, SerializationContext context) {
	// We could have separate serializers/deserializers to take
	// care of Float/Double cases, but it makes more sence to
	// put them here with the rest of the java lang primitives.
	if (value instanceof Float \|\|
	value instanceof Double) {
	double data = 0.0;
	if (value instanceof Float) {
	data = ((Float) value).doubleValue();
	} else {
	data = ((Double) value).doubleValue();
	}
	if (Double.isNaN(data)) {
	return "NaN";
	} else if (data == Double.POSITIVE_INFINITY) {
	return "INF";
	} else if (data == Double.NEGATIVE_INFINITY) {
	return "-INF";
	}
	} else if (value instanceof QName) {
	return context.qName2String((QName)value);
	}

	if (propertyDescriptor != null && !(value instanceof SimpleType)) {
	BeanPropertyDescriptor pd = BeanUtils.getSpecificPD(propertyDescriptor, "_value");
	if(pd != null) {
	try {
	return pd.get(value).toString();
	} catch (Exception e) {
	}
	}
	}
	return value.toString();
	}

	private Attributes getObjectAttributes(Object value,
	Attributes attributes,
	SerializationContext context) {
	if (typeDesc != null && !typeDesc.hasAttributes())
	return attributes;

	AttributesImpl attrs;
	if (attributes == null) {
	attrs = new AttributesImpl();
	} else if (attributes instanceof AttributesImpl) {
	attrs = (AttributesImpl)attributes;
	} else {
	attrs = new AttributesImpl(attributes);
	}

	try {
	// Find each property that is an attribute
	// and add it to our attribute list
	for (int i = 0;
	propertyDescriptor != null && i < propertyDescriptor.length;
	i++) {
	String propName = propertyDescriptor[i].getName();
	if (propName.equals("class"))
	continue;

	QName qname = null;
	if(typeDesc != null) {
	FieldDesc field = typeDesc.getFieldByName(propName);
	// skip it if its not an attribute
	if (field == null \|\| field.isElement())
	continue;
	qname = field.getXmlName();
	} else {
	if(propName.equals(VALUE_PROPERTY))
	continue;
	}
	if (qname == null) {
	qname = new QName("", propName);
	}

	if (propertyDescriptor[i].isReadable() &&
	!propertyDescriptor[i].isIndexed()) {
	// add to our attributes
	Object propValue = propertyDescriptor[i].get(value);
	// If the property value does not exist, don't serialize
	// the attribute. In the future, the decision to serializer
	// the attribute may be more sophisticated. For example, don't
	// serialize if the attribute matches the default value.
	if (propValue != null) {
	String propString = getValueAsString(propValue, context);

	String namespace = qname.getNamespaceURI();
	String localName = qname.getLocalPart();

	attrs.addAttribute(namespace,
	localName,
	context.qName2String(qname),
	"CDATA",
	propString);
	}
	}
	}
	} catch (Exception e) {
	// no attributes
	return attrs;
	}

	return attrs;
	}

	public String getMechanismType() { return Constants.AXIS_SAX; }

	/**
	* Return XML schema for the specified type, suitable for insertion into
	* the <types> element of a WSDL document, or underneath an
	* <element> or <attribute> declaration.
	*
	* @param javaType the Java Class we're writing out schema for
	* @param types the Java2WSDL Types object which holds the context
	* for the WSDL being generated.
	* @return a type element containing a schema simpleType/complexType
	* @see org.apache.axis.wsdl.fromJava.Types
	*/
	public Element writeSchema(Class javaType, Types types) throws Exception {
	// ComplexType representation of SimpleType bean class
	Element complexType = types.createElement("complexType");
	types.writeSchemaTypeDecl(xmlType, complexType);
	complexType.setAttribute("name", xmlType.getLocalPart());

	// Produce simpleContent extending base type.
	Element simpleContent = types.createElement("simpleContent");
	complexType.appendChild(simpleContent);
	Element extension = types.createElement("extension");
	simpleContent.appendChild(extension);

	// Get the base type from the "value" element of the bean
	String base = "string";
	for (int i=0; propertyDescriptor != null && i<propertyDescriptor.length; i++) {
	String propName = propertyDescriptor[i].getName();
	if (!propName.equals("value")) {
	if (typeDesc != null) {
	FieldDesc field = typeDesc.getFieldByName(propName);
	if (field != null) {
	if (field.isElement()) {
	// throw?
	}
	QName qname = field.getXmlName();
	if (qname == null) {
	// Use the default...
	qname = new QName("", propName);
	}

	// write attribute element
	Class fieldType = propertyDescriptor[i].getType();

	// Attribute must be a simple type, enum or SimpleType
	if (!types.isAcceptableAsAttribute(fieldType)) {
	throw new AxisFault(Messages.getMessage("AttrNotSimpleType00",
	propName,
	fieldType.getName()));
	}

	// write attribute element
	// TODO the attribute name needs to be preserved from the XML
	Element elem = types.createAttributeElement(propName,
	fieldType,
	field.getXmlType(),
	false,
	extension.getOwnerDocument());
	extension.appendChild(elem);
	}
	}
	continue;
	}

	BeanPropertyDescriptor bpd = propertyDescriptor[i];
	Class type = bpd.getType();
	// Attribute must extend a simple type, enum or SimpleType
	if (!types.isAcceptableAsAttribute(type)) {
	throw new AxisFault(Messages.getMessage("AttrNotSimpleType01",
	type.getName()));
	}
	base = types.writeType(type);
	extension.setAttribute("base", base);
	}

	// done
	return complexType;

	}
	}