| 1 |
|
|
| 2 |
|
|
| 3 |
|
|
| 4 |
|
|
| 5 |
|
|
| 6 |
|
|
| 7 |
|
|
| 8 |
|
|
| 9 |
|
|
| 10 |
|
|
| 11 |
|
|
| 12 |
|
|
| 13 |
|
|
| 14 |
|
|
| 15 |
|
|
| 16 |
|
|
| 17 |
|
package org.apache.camel.converter.jaxb; |
| 18 |
|
|
| 19 |
|
import java.io.InputStream; |
| 20 |
|
import java.io.Reader; |
| 21 |
|
import java.io.StringReader; |
| 22 |
|
import java.io.StringWriter; |
| 23 |
|
|
| 24 |
|
import javax.xml.bind.JAXBContext; |
| 25 |
|
import javax.xml.bind.JAXBException; |
| 26 |
|
import javax.xml.bind.Unmarshaller; |
| 27 |
|
import javax.xml.bind.Marshaller; |
| 28 |
|
import javax.xml.bind.annotation.XmlRootElement; |
| 29 |
|
import javax.xml.bind.util.JAXBSource; |
| 30 |
|
import javax.xml.transform.Source; |
| 31 |
|
|
| 32 |
|
import org.apache.camel.RuntimeCamelException; |
| 33 |
|
import org.apache.camel.TypeConverter; |
| 34 |
|
import org.apache.camel.spi.TypeConverterAware; |
| 35 |
|
import org.apache.commons.logging.Log; |
| 36 |
|
import org.apache.commons.logging.LogFactory; |
| 37 |
|
|
| 38 |
|
|
| 39 |
|
|
| 40 |
|
|
| 41 |
1 |
public class FallbackTypeConverter implements TypeConverter, TypeConverterAware { |
| 42 |
1 |
private static final transient Log LOG = LogFactory.getLog(FallbackTypeConverter.class); |
| 43 |
|
private TypeConverter parentTypeConverter; |
| 44 |
1 |
private boolean prettyPrint = true; |
| 45 |
|
|
| 46 |
|
public boolean isPrettyPrint() { |
| 47 |
0 |
return prettyPrint; |
| 48 |
|
} |
| 49 |
|
|
| 50 |
|
public void setPrettyPrint(boolean prettyPrint) { |
| 51 |
0 |
this.prettyPrint = prettyPrint; |
| 52 |
0 |
} |
| 53 |
|
|
| 54 |
|
public void setTypeConverter(TypeConverter parentTypeConverter) { |
| 55 |
1 |
this.parentTypeConverter = parentTypeConverter; |
| 56 |
1 |
} |
| 57 |
|
|
| 58 |
|
public <T> T convertTo(Class<T> type, Object value) { |
| 59 |
|
try { |
| 60 |
1 |
if (isJaxbType(type)) { |
| 61 |
1 |
return unmarshall(type, value); |
| 62 |
|
} |
| 63 |
0 |
if (value != null) { |
| 64 |
0 |
if (isJaxbType(value.getClass())) { |
| 65 |
0 |
return marshall(type, value); |
| 66 |
|
} |
| 67 |
|
} |
| 68 |
0 |
return null; |
| 69 |
0 |
} catch (JAXBException e) { |
| 70 |
0 |
throw new RuntimeCamelException(e); |
| 71 |
|
} |
| 72 |
|
} |
| 73 |
|
|
| 74 |
|
protected <T> boolean isJaxbType(Class<T> type) { |
| 75 |
1 |
XmlRootElement element = type.getAnnotation(XmlRootElement.class); |
| 76 |
1 |
boolean jaxbType = element != null; |
| 77 |
1 |
return jaxbType; |
| 78 |
|
} |
| 79 |
|
|
| 80 |
|
|
| 81 |
|
|
| 82 |
|
|
| 83 |
|
protected <T> T unmarshall(Class<T> type, Object value) throws JAXBException { |
| 84 |
1 |
JAXBContext context = createContext(type); |
| 85 |
1 |
Unmarshaller unmarshaller = context.createUnmarshaller(); |
| 86 |
|
|
| 87 |
1 |
if (parentTypeConverter != null) { |
| 88 |
1 |
InputStream inputStream = parentTypeConverter.convertTo(InputStream.class, value); |
| 89 |
1 |
if (inputStream != null) { |
| 90 |
1 |
Object unmarshalled = unmarshaller.unmarshal(inputStream); |
| 91 |
1 |
return type.cast(unmarshalled); |
| 92 |
|
} |
| 93 |
0 |
Reader reader = parentTypeConverter.convertTo(Reader.class, value); |
| 94 |
0 |
if (reader != null) { |
| 95 |
0 |
Object unmarshalled = unmarshaller.unmarshal(reader); |
| 96 |
0 |
return type.cast(unmarshalled); |
| 97 |
|
} |
| 98 |
0 |
Source source = parentTypeConverter.convertTo(Source.class, value); |
| 99 |
0 |
if (source != null) { |
| 100 |
0 |
Object unmarshalled = unmarshaller.unmarshal(source); |
| 101 |
0 |
return type.cast(unmarshalled); |
| 102 |
|
} |
| 103 |
|
} |
| 104 |
0 |
if (value instanceof String) { |
| 105 |
0 |
value = new StringReader((String)value); |
| 106 |
|
} |
| 107 |
0 |
if (value instanceof InputStream) { |
| 108 |
0 |
Object unmarshalled = unmarshaller.unmarshal((InputStream)value); |
| 109 |
0 |
return type.cast(unmarshalled); |
| 110 |
|
} |
| 111 |
0 |
if (value instanceof Reader) { |
| 112 |
0 |
Object unmarshalled = unmarshaller.unmarshal((Reader)value); |
| 113 |
0 |
return type.cast(unmarshalled); |
| 114 |
|
} |
| 115 |
0 |
return null; |
| 116 |
|
} |
| 117 |
|
|
| 118 |
|
protected <T> T marshall(Class<T> type, Object value) throws JAXBException { |
| 119 |
0 |
if (parentTypeConverter != null) { |
| 120 |
|
|
| 121 |
|
|
| 122 |
0 |
JAXBContext context = createContext(value.getClass()); |
| 123 |
0 |
JAXBSource source = new JAXBSource(context, value); |
| 124 |
0 |
T answer = parentTypeConverter.convertTo(type, source); |
| 125 |
0 |
if (answer == null) { |
| 126 |
|
|
| 127 |
0 |
StringWriter buffer = new StringWriter(); |
| 128 |
0 |
Marshaller marshaller = context.createMarshaller(); |
| 129 |
0 |
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, isPrettyPrint() ? Boolean.TRUE : Boolean.FALSE); |
| 130 |
0 |
marshaller.marshal(value, buffer); |
| 131 |
0 |
return parentTypeConverter.convertTo(type, buffer.toString()); |
| 132 |
|
} |
| 133 |
0 |
return answer; |
| 134 |
|
} |
| 135 |
|
|
| 136 |
|
|
| 137 |
0 |
return null; |
| 138 |
|
} |
| 139 |
|
|
| 140 |
|
protected <T> JAXBContext createContext(Class<T> type) throws JAXBException { |
| 141 |
1 |
JAXBContext context = JAXBContext.newInstance(type); |
| 142 |
1 |
return context; |
| 143 |
|
} |
| 144 |
|
} |