Examples of org.mozilla.javascript.serialize.ScriptableOutputStream

Package org.mozilla.javascript.serialize

Examples of org.mozilla.javascript.serialize.ScriptableOutputStream

org.mozilla.javascript.serialize.ScriptableOutputStream
Class ScriptableOutputStream is an ObjectOutputStream used to serialize JavaScript objects and functions. Note that compiled functions currently cannot be serialized, only interpreted functions. The top-level scope containing the object is not written out, but is instead replaced with another top-level object when the ScriptableInputStream reads in this object. Also, object corresponding to names added to the exclude list are not written out but instead are looked up during deserialization. This approach avoids the creation of duplicate copies of standard objects during deserialization. @author Norris Boyd

    public void serialize(Object obj, OutputStream out) throws IOException {
        core.contextFactory.enterContext();
        engines.set(this);
        try {
            // use a special ScriptableOutputStream that unwraps Wrappers
            ScriptableOutputStream sout = new ScriptableOutputStream(out, core.global) {
                protected Object replaceObject(Object obj) throws IOException {
                    if (obj instanceof HopObject)
                        return new HopObjectProxy((HopObject) obj);
                    if (obj instanceof Node)
                        return new HopObjectProxy((Node) obj);
                    if (obj instanceof GlobalObject)
                        return new GlobalProxy((GlobalObject) obj);
                    if (obj instanceof ApplicationBean)
                        return new ScriptBeanProxy("app");
                    if (obj instanceof RequestBean)
                        return new ScriptBeanProxy("req");
                    if (obj instanceof ResponseBean)
                        return new ScriptBeanProxy("res");
                    if (obj instanceof PathWrapper)
                        return new ScriptBeanProxy("path");
                    return super.replaceObject(obj);
                }
            };
            // sout.addExcludedName("Xml");
            // sout.addExcludedName("global");            


            sout.writeObject(obj);
            sout.flush();
        } finally {
            Context.exit();
        }
    }

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                    }
                    
                    // bit of a hack to initialize all lazy objects that 
                    // ScriptableOutputStream would initialize, so we can then
                    // safely seal it
                    new ScriptableOutputStream(new ByteArrayOutputStream(), 
                            library);
                    // Finally seal the library scope
                    library.sealObject();
                }
                catch(RuntimeException e) {

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          cx.callFunctionWithContinuations(f, globalScope, args);
          fail("Should throw ContinuationPending");
      } catch (ContinuationPending pending) {
          // serialize
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
          sos.writeObject(globalScope);
          sos.writeObject(pending.getContinuation());
          sos.close();
          baos.close();
          byte[] serializedData = baos.toByteArray();


          // deserialize
          ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);

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          cx.callFunctionWithContinuations(f, globalScope, args);
          fail("Should throw ContinuationPending");
      } catch (ContinuationPending pending) {
          // serialize
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
          sos.writeObject(globalScope);
          sos.writeObject(pending.getContinuation());
          sos.close();
          baos.close();
          byte[] serializedData = baos.toByteArray();


          // deserialize
          ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);

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          cx.callFunctionWithContinuations(f, globalScope, args);
          fail("Should throw ContinuationPending");
      } catch (ContinuationPending pending) {
          // serialize
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
          sos.writeObject(globalScope);
          sos.writeObject(pending.getContinuation());
          sos.close();
          baos.close();
          byte[] serializedData = baos.toByteArray();


          // deserialize
          ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);

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          cx.callFunctionWithContinuations(f, globalScope, args);
          fail("Should throw ContinuationPending");
      } catch (ContinuationPending pending) {
          // serialize
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
          sos.writeObject(globalScope);
          sos.writeObject(pending.getContinuation());
          sos.close();
          baos.close();
          byte[] serializedData = baos.toByteArray();


          // deserialize
          ByteArrayInputStream bais = new ByteArrayInputStream(serializedData);

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        cx.callFunctionWithContinuations(f, globalScope, args);
        fail("Should throw ContinuationPending");
      } catch (ContinuationPending pending) {
        // serialize
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        ScriptableOutputStream sos = new ScriptableOutputStream(baos, globalScope);
        sos.writeObject(globalScope);
        sos.writeObject(pending.getContinuation());
        sos.close();
        baos.close();
        serializedData = baos.toByteArray();
      } finally {
        Context.exit();
      }

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        p.setApplicationState("foo");
        
        SerializableUtils.serialiseObject(p);


        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ScriptableOutputStream out = new ScriptableOutputStream(bout, globalScope);
//        out.addExcludedName("scriptus");
        out.writeObject(globalScope);
        out.writeObject(p);
        out.close();


      }
      
//      System.out.println(ss.exec(cx, globalScope));

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