Examples of freenet.client.async.ClientGetCallback

freenet.client.async.ClientGetCallback
Internal callback interface for requests. Methods are called on the database thread if the request is persistent, otherwise on whatever thread completed the request (therefore with a null container).

    tempContext.maxTempLength = NodeUpdateManager.MAX_REVOCATION_KEY_TEMP_LENGTH;
    tempContext.localRequestOnly = true;


    final ArrayBucket cleanedBlob = new ArrayBucket();


    ClientGetCallback myCallback = new ClientGetCallback() {


      @Override
      public void onFailure(FetchException e, ClientGetter state) {
        if(e.mode == FetchExceptionMode.CANCELLED) {
          // Eh?
          Logger.error(this, "Cancelled fetch from store/blob of revocation certificate from " + source);
          System.err.println("Cancelled fetch from store/blob of revocation certificate from " + source + " to " + temp + " - please report to developers");
        // Probably best to keep files around for now.
        } else if(e.isFatal()) {
          // Blown: somebody inserted a revocation message, but it was corrupt as inserted
          // However it had valid signatures etc.


          System.err.println("Got revocation certificate from " + source + " (fatal error i.e. someone with the key inserted bad data) : "+e);
          // Blow the update, and propagate the revocation certificate.
          updateManager.revocationChecker.onFailure(e, state, cleanedBlob);
          // Don't delete it if it's from disk, as it's already in the right place.
          if(!fromDisk)
            temp.free();


          insertBlob(updateManager.revocationChecker.getBlobBucket(), "revocation");
        } else {
          String message = "Failed to fetch revocation certificate from blob from " +
            source + " : "+e+
            (fromDisk ? " : did you change the revocation key?" : 
              " : this is almost certainly bogus i.e. the auto-update is fine but the node is broken.");
          Logger.error(this, message);
          System.err.println(message);
          // This is almost certainly bogus.
          // Delete it, even if it's fromDisk.
          temp.free();
          cleanedBlob.free();
        }
      }


      @Override
      public void onSuccess(FetchResult result, ClientGetter state) {
        System.err.println("Got revocation certificate from " + source);
        updateManager.revocationChecker.onSuccess(result, state, cleanedBlob);
        if(!fromDisk)
          temp.free();
        insertBlob(updateManager.revocationChecker.getBlobBucket(), "revocation");
      }
      
            @Override
            public void onResume(ClientContext context) {
                // Not persistent.
            }
            
            @Override
            public RequestClient getRequestClient() {
                return UpdateOverMandatoryManager.this;
            }
    };


    ClientGetter cg = new ClientGetter(myCallback,
      updateManager.getRevocationURI(), tempContext, (short) 0, null, new BinaryBlobWriter(cleanedBlob), null);


    try {
      updateManager.node.clientCore.clientContext.start(cg);
    } catch(FetchException e1) {
      System.err.println("Failed to decode UOM blob: " + e1);
      e1.printStackTrace();
      myCallback.onFailure(e1, cg);
    } catch (PersistenceDisabledException e) {
      // Impossible
    }


  }

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      f = null;
    }
    final FileBucket cleanedBlob = b;
    final File cleanedBlobFile = f;


    ClientGetCallback myCallback = new ClientGetCallback() {


      @Override
      public void onFailure(FetchException e, ClientGetter state) {
        if(e.mode == FetchExceptionMode.CANCELLED) {
          // Eh?
          Logger.error(this, "Cancelled fetch from store/blob of main jar (" + version + ") from " + toString);
          System.err.println("Cancelled fetch from store/blob of main jar (" + version + ") from " + toString + " to " + temp + " - please report to developers");
        // Probably best to keep files around for now.
        } else if(e.newURI != null) {
          temp.delete();
          Logger.error(this, "URI changed fetching main jar "+version+" from "+toString);
          System.out.println("URI changed fetching main jar "+version+" from "+toString);
        } else if(e.isFatal()) {
          // Bogus as inserted. Ignore.
          temp.delete();
          Logger.error(this, "Failed to fetch main jar " + version + " from " + toString + " : fatal error (update was probably inserted badly): " + e, e);
          System.err.println("Failed to fetch main jar " + version + " from " + toString + " : fatal error (update was probably inserted badly): " + e);
        } else {
          Logger.error(this, "Failed to fetch main jar " + version + " from blob from " + toString);
          System.err.println("Failed to fetch main jar " + version + " from blob from " + toString);
        }
      }


      @Override
      public void onSuccess(FetchResult result, ClientGetter state) {
        System.err.println("Got main jar version " + version + " from " + toString);
        if(result.size() == 0) {
          System.err.println("Ignoring because 0 bytes long");
          return;
        }


        NodeUpdater mainUpdater = updateManager.getMainUpdater();
        if(mainUpdater == null) {
          System.err.println("Not updating because updater is disabled!");
          return;
        }
        mainUpdater.onSuccess(result, state, cleanedBlobFile, version);
        temp.delete();
        insertBlob(mainUpdater.getBlobBucket(version), "main jar");
      }


            @Override
            public void onResume(ClientContext context) {
                // Not persistent.
            }
            
            @Override
            public RequestClient getRequestClient() {
                return UpdateOverMandatoryManager.this;
            }


    };


    ClientGetter cg = new ClientGetter(myCallback,
      uri, tempContext, (short) 0, null, new BinaryBlobWriter(cleanedBlob), null);


    try {
      updateManager.node.clientCore.clientContext.start(cg);
    } catch(FetchException e1) {
      myCallback.onFailure(e1, cg);
    } catch (PersistenceDisabledException e) {
      // Impossible
    }


  }

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Related Classes of freenet.client.async.ClientGetCallback

freenet.node.updater.UpdateOverMandatoryManager

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