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57 changes: 57 additions & 0 deletions
57
src/main/java/il/ac/bgu/cs/bp/bpjs/bprogramio/BProgramSyncSnapshotInputStream.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * The MIT License | ||
| * | ||
| * Copyright 2017 michael. | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
| package il.ac.bgu.cs.bp.bpjs.bprogramio; | ||
|
|
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| import org.mozilla.javascript.Scriptable; | ||
| import org.mozilla.javascript.serialize.ScriptableInputStream; | ||
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| import java.io.IOException; | ||
| import java.io.InputStream; | ||
|
|
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| /** | ||
| * | ||
| * @author michael | ||
| */ | ||
| public class BProgramSyncSnapshotInputStream extends ScriptableInputStream { | ||
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| private final StubProvider stubProvider; | ||
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| public BProgramSyncSnapshotInputStream(InputStream in, Scriptable scope, StubProvider aProvider) throws IOException { | ||
| super(in, scope); | ||
| stubProvider = aProvider; | ||
| } | ||
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| @Override | ||
| protected Object resolveObject(Object obj) throws IOException { | ||
| return ( obj instanceof StreamObjectStub ) | ||
| ? stubProvider.get((StreamObjectStub) obj) | ||
| : obj; | ||
| } | ||
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| @Override | ||
| protected Object readObjectOverride() throws IOException, ClassNotFoundException { | ||
| return super.readObjectOverride(); | ||
| } | ||
|
|
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| } |
68 changes: 68 additions & 0 deletions
68
src/main/java/il/ac/bgu/cs/bp/bpjs/bprogramio/BProgramSyncSnapshotOutputStream.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,68 @@ | ||
| /* | ||
| * The MIT License | ||
| * | ||
| * Copyright 2017 michael. | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
| package il.ac.bgu.cs.bp.bpjs.bprogramio; | ||
|
|
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| import il.ac.bgu.cs.bp.bpjs.execution.jsproxy.BProgramJsProxy; | ||
| import il.ac.bgu.cs.bp.bpjs.model.BThreadSyncSnapshot; | ||
| import org.mozilla.javascript.Scriptable; | ||
| import org.mozilla.javascript.serialize.ScriptableOutputStream; | ||
|
|
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| import java.io.IOException; | ||
| import java.io.OutputStream; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
|
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| /** | ||
| * Output stream for {@link BThreadSyncSnapshot} objects. Creates stubs for objects that can link back to the java | ||
| * context, such as the {@code XJsProxy} classes. | ||
| * | ||
| * @author michael | ||
| */ | ||
| public class BProgramSyncSnapshotOutputStream extends ScriptableOutputStream { | ||
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| private final List<StreamObjectStub> stubs = new ArrayList<>(); | ||
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| @SuppressWarnings("OverridableMethodCallInConstructor") | ||
| public BProgramSyncSnapshotOutputStream(OutputStream out, Scriptable scope) throws IOException { | ||
| super(out, scope); | ||
| } | ||
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| @Override | ||
| protected Object replaceObject(Object obj) throws IOException { | ||
| if ( obj instanceof BProgramJsProxy ) { | ||
| stubs.add(StreamObjectStub.BP_PROXY); | ||
| return StreamObjectStub.BP_PROXY; | ||
| } else if ( ! (obj instanceof java.io.Serializable) ) { | ||
| System.err.println("Attempt to write a non-serializable object " + obj.toString()); | ||
| return "NOT SERIALIZABLE: " + obj.toString(); | ||
| } else { | ||
| return obj; | ||
| } | ||
| } | ||
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| public List<StreamObjectStub> getStubs() { | ||
| return stubs; | ||
| } | ||
|
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| } |