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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java | |
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Diffstat (limited to 'libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java')
-rw-r--r-- | libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java b/libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java new file mode 100644 index 000000000..0578f13b8 --- /dev/null +++ b/libjava/classpath/gnu/CORBA/CDR/ArrayValueHelper.java @@ -0,0 +1,254 @@ +/* ArrayValueHelper.java -- + Copyright (C) 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.CORBA.CDR; + +import gnu.CORBA.ObjectCreator; + +import org.omg.CORBA.BooleanSeqHelper; +import org.omg.CORBA.CharSeqHelper; +import org.omg.CORBA.DoubleSeqHelper; +import org.omg.CORBA.FloatSeqHelper; +import org.omg.CORBA.LongLongSeqHelper; +import org.omg.CORBA.LongSeqHelper; +import org.omg.CORBA.OctetSeqHelper; +import org.omg.CORBA.ShortSeqHelper; +import org.omg.CORBA.portable.BoxedValueHelper; +import org.omg.CORBA.portable.InputStream; +import org.omg.CORBA.portable.OutputStream; + +import java.io.Serializable; +import java.lang.reflect.Array; +import java.rmi.Remote; + +import javax.rmi.CORBA.Util; +import javax.rmi.CORBA.ValueHandler; + +/** + * Writes arrays as a boxed value types. A single instance is used to write a + * single array. This class is only used with RMI/IIOP, to handle array boxed + * values. + * + * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org) + */ +class ArrayValueHelper + implements BoxedValueHelper +{ + /** + * The value handler (one for all instances). + */ + static ValueHandler handler = Util.createValueHandler(); + + /** + * A class of the array being written. + */ + Class arrayClass; + + /** + * The array component class. + */ + Class component; + + /** + * The array component repository Id. + */ + String componentId; + + /** + * If true, the array members are written as objects rather than as values. + * True for Remotes and CORBA objects. + */ + boolean written_as_object() + { + return org.omg.CORBA.Object.class.isAssignableFrom(component) + || Remote.class.isAssignableFrom(component); + } + + /** + * Creates the instance of the helper to write this specific array class. + */ + ArrayValueHelper(Class an_arrayClass) + { + arrayClass = an_arrayClass; + } + + /** + * Get the array repository Id that will be the RMI repository id. + */ + public String get_id() + { + return ObjectCreator.getRepositoryId(arrayClass); + } + + /** + * Read the array from the input stream. + */ + public Serializable read_value(InputStream input) + { + if (input instanceof HeadlessInput) + { + ((HeadlessInput) input).subsequentCalls = true; + } + + component = arrayClass.getComponentType(); + + if (component.equals(byte.class)) + return OctetSeqHelper.read(input); + else if (component.equals(String.class)) + { + // String array is optimized because this may be frequent. + String[] s = new String[input.read_long()]; + + for (int i = 0; i < s.length; i++) + s[i] = (String) Vio.read(input, Vio.m_StringValueHelper); + return s; + } + else if (component.equals(int.class)) + return LongSeqHelper.read(input); + else if (component.equals(long.class)) + return LongLongSeqHelper.read(input); + else if (component.equals(double.class)) + return DoubleSeqHelper.read(input); + else if (component.equals(float.class)) + return FloatSeqHelper.read(input); + else if (component.equals(boolean.class)) + return BooleanSeqHelper.read(input); + else if (component.equals(short.class)) + return ShortSeqHelper.read(input); + else if (component.equals(char.class)) + return CharSeqHelper.read(input); + else + { + // Read others, use reflection. + int n = input.read_long(); + + gnuValueStream s = null; + + Serializable array = (Serializable) Array.newInstance(component, n); + if (written_as_object()) + for (int i = 0; i < n; i++) + { + gnuRuntime g; + int position; + if (input instanceof gnuValueStream) + { + s = (gnuValueStream) input; + g = s.getRunTime(); + position = s.getPosition(); + } + else + { + g = null; + position = -1; + } + + if (input instanceof HeadlessInput) + ((HeadlessInput) input).subsequentCalls = true; + + Object o = handler.readValue(input, position, component, null, g); + Array.set(array, i, o); + } + else + for (int i = 0; i < n; i++) + Array.set(array, i, Vio.read(input, component)); + return array; + } + } + + /** + * Write the array to the input stream. + */ + public void write_value(OutputStream output, Serializable value) + { + if (output instanceof gnuValueStream) + { + gnuRuntime r = ((gnuValueStream) output).getRunTime(); + if (r != null) + r.target = null; + } + + if (value instanceof byte[]) + OctetSeqHelper.write(output, (byte[]) value); + else if (value instanceof String[]) + { + String[] s = (String[]) value; + output.write_long(s.length); + for (int i = 0; i < s.length; i++) + Vio.write(output, s[i], Vio.m_StringValueHelper); + } + else if (value instanceof int[]) + LongSeqHelper.write(output, (int[]) value); + else if (value instanceof long[]) + LongLongSeqHelper.write(output, (long[]) value); + else if (value instanceof double[]) + DoubleSeqHelper.write(output, (double[]) value); + else if (value instanceof float[]) + FloatSeqHelper.write(output, (float[]) value); + else if (value instanceof boolean[]) + BooleanSeqHelper.write(output, (boolean[]) value); + else if (value instanceof short[]) + ShortSeqHelper.write(output, (short[]) value); + else if (value instanceof char[]) + CharSeqHelper.write(output, (char[]) value); + else + { + // Write others, use reflection. + component = arrayClass.getComponentType(); + + int n = Array.getLength(value); + output.write_long(n); + if (written_as_object()) + for (int i = 0; i < n; i++) + { + Object o = Array.get(value, i); + if (o == null) + output.write_Object(null); + else + // CORBA objects have another notation. + handler.writeValue(output, (Serializable) o); + } + else + { + for (int i = 0; i < n; i++) + Vio.write(output, (Serializable) Array.get(value, i), + component); + } + + } + } +} |