Java CDACallback类代码示例

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
public void cancel(String tag) {
  synchronized (lock) {
    HashSet<CDACallback> set = tags.get(tag);

    if (set != null) {
      for (CDACallback callback : set) {
        callback.cancel();
      }

      data.removeAll(set);
      set.clear();
    }

    tags.remove(tag);
  }
}
 

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
private void loadData() {
  emptyView.setVisibility(View.VISIBLE);

  callbacks.add(CFDiscoveryClient.getClient()
      .fetch(CDAEntry.class)
      .one(getString(R.string.discovery_space_entry_id), new CDACallback<CDAEntry>() {
        @Override
        @SuppressWarnings("unchecked")
        protected void onSuccess(CDAEntry entry) {
          insertTitle((String) entry.getField("title"));

          //noinspection unchecked
          for (CDAResource helpItem : (List<CDAResource>) entry.getField("helpItems")) {
            insertHelpItem((CDAEntry) helpItem);
          }

          emptyView.setVisibility(View.GONE);
          container.setVisibility(View.VISIBLE);
        }
      }));
}
 

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
@Test
public void fetchNyancatEntryAsync() throws Exception {
  final CountDownLatch latch = new CountDownLatch(1);
  final CDAEntry[] result = {null};

  client.fetch(CDAEntry.class).one("nyancat", new CDACallback<CDAEntry>() {
    @Override protected void onSuccess(CDAEntry entry) {
      result[0] = entry;
      latch.countDown();
    }

    @Override protected void onFailure(Throwable error) {
      latch.countDown();
    }
  });

  latch.await(1, TimeUnit.SECONDS);
  assertThat(result[0]).isNotNull();
  assertNyanCat(result[0]);
}
 

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
public <T extends CDACallback> T add(T callback) {
  synchronized (lock) {
    data.add(callback);
  }

  return callback;
}
 

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
public void cancelAndClear() {
  synchronized (lock) {
    for (CDACallback cb : data) {
      cb.cancel();
    }

    data.clear();
    tags.clear();
  }
}
 

import com.contentful.java.cda.CDACallback; //导入依赖的package包/类
/**
 * Attempts to log in to {@code Space}, given a set of {@code Credentials}.
 *
 * @param credentials {@code Credentials} instance.
 */
private void login(final Credentials credentials) {
  // ProgressDialog to be displayed while the request is carried.
  final ProgressDialog loginDialog = ProgressDialog.show(this, getString(R.string.pd_login_title),
      getString(R.string.pd_login_message), true, true, new DialogInterface.OnCancelListener() {
        @Override public void onCancel(DialogInterface dialog) {
          callbacks.cancelAndClear();
        }
      });

  // Initialize client singleton & test our credentials while attempting to fetch
  // their corresponding {@link Space}.
  // Note that we're adding the CDACallback instance to our callbacks set, case we
  // would need to cancel the request in the future (i.e. onDestroy).
  CFClient.init(credentials.getSpace(), credentials.getAccessToken());

  callbacks.add(CFClient.getClient().fetchSpace(new CDACallback<CDASpace>() {
    @Override protected void onSuccess(CDASpace space) {
      loginDialog.dismiss();
      handleLoginSuccess(space, credentials);
    }

    @Override protected void onFailure(Throwable error) {
      loginDialog.dismiss();
      handleLoginFailure(error, credentials);
    }
  }));
}