Groovy example source code file (StreamClassloaderInScriptTest.groovy)

This example Groovy source code file (StreamClassloaderInScriptTest.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

blah, blah, bytearrayoutputstream, bytearrayoutputstream, groovyshelltestcase, groovyshelltestcase, serializable, serializable, streamclassloaderinscripttest

The Groovy StreamClassloaderInScriptTest.groovy source code

package groovy.script

class StreamClassloaderInScriptTest extends GroovyShellTestCase {

    final static BLAH = """
class Blah implements Serializable {
def x, y
boolean equals(def other) { x == other.x && y == other.y }
}
"""

    void testSerializationToFileWithinScript() {
        evaluate BLAH + """
def file = new File('blahblah.dat')
file.deleteOnExit()
def data = [ new Blah(x:1, y:2), new Blah(x:'flob', y:'adob') ]
file.withObjectOutputStream { oos ->
    oos.writeObject ( data )
}
// in a script we must set the classloader
file.withObjectInputStream(getClass().classLoader){ ois ->
    def newData = ois.readObject ( )
    assert data == newData
}
        """
    }

    void testSerializationToBytesWithinScript() {
        evaluate BLAH + """
def baos = new ByteArrayOutputStream()
def data = [ new Blah(x:1, y:2), new Blah(x:'flob', y:'adob') ]
baos.withObjectOutputStream { oos ->
    oos.writeObject ( data )
}
def bais = new ByteArrayInputStream(baos.toByteArray())
// in a script we must set the classloader
bais.withObjectInputStream(getClass().classLoader){ ois ->
    def newData = ois.readObject ( )
    assert data == newData
}
        """
    }

}