How to use org.apache.chemistry.opencmis.client.api

 // User credentials.
parameters.put(SessionParameter.USER, "admin");
parameters.put(SessionParameter.PASSWORD, "admin");

// Connection settings.
parameters.put(SessionParameter.BINDING_TYPE, BindingType.ATOMPUB.value());
parameters.put(SessionParameter.ATOMPUB_URL, "http://localhost:8080/alfresco/service/cmis"); // URL to your CMIS server.
parameters.put(SessionParameter.AUTH_HTTP_BASIC, "true" );
parameters.put(SessionParameter.COOKIES, "true" );

// Create session.
// Alfresco only provides one repository.
Repository repository = sessionFactory.getRepositories(parameters).get(0);
Session session = repository.createSession();

@Override
public String getDocumentId( String path ) {
  // establish relation between path and object identifier
  return session.getObjectByPath(path).getId();
}

private void doQuery(Session session, String stmt) {
  for (QueryResult qr : session.query(stmt, false)) {
    qr.getPropertyByQueryName("cmis:name");
  }
}

/**
 * Deletes document identified by objectId.
 * @param session
 * @param objectId
 */
protected void deleteDocument(Session session, String objectId) {
  Document document = (Document) session.getObject(objectId);
  document.delete(false);
}

 // For how to get a Session see:
// http://chemistry.apache.org/java/opencmis-client-api.html#sessions
Session session = getSession();

CmisObject object = session.getObjectByPath("/path/to/object");
ObjectType type = object.getType();
Boolean isVersionable = type instanceOf DocumentType && ((DocumentType)type).isVersionable();

@Override
public void delete(String path, String documentName, Session session) throws Exception {
  // Disable cache
  session.getDefaultContext().setCacheEnabled(false);
  Document document = (Document)FileUtils.getObject(path + "/" + documentName, session);
  document.delete();
  // Enable cache
  session.getDefaultContext().setCacheEnabled(true);
}

  public List<Tree<ObjectType>> getDescendants(int depth) {
    return session.getTypeDescendants(objectType.getId(), depth, true);
  }
}

  @Override
  public Object call() throws Exception {
    session.delete(objectId, allVersions);
    return null;
  }
}

  @Override
  public ContentStream call() throws Exception {
    return session.getContentStream(docId, streamId, offset, length);
  }
}

  @Override
  public Acl call() throws Exception {
    return session.setAcl(objectId, aces);
  }
}

  @Override
  public ObjectType call() throws Exception {
    return session.createType(type);
  }
}

  @Override
  public ObjectId call() throws Exception {
    return session.createFolder(properties, folderId, policies, addAces, removeAces);
  }
}

  @Override
  public List<String> call() throws Exception {
    return session.deleteTree(folderId, allVersions, unfile, continueOnFailure);
  }
}

  @Override
  public ObjectId call() throws Exception {
    return session.createDocumentFromSource(source, properties, folderId, versioningState, policies, addAces,
        removeAces);
  }
}

  @Override
  public ObjectId call() throws Exception {
    return session.createItem(properties, folderId, policies, addAces, removeAces);
  }
}

 Session session = getSession(serverUrl, username, password);
CmisObject object = session.getObject(path);
Document suppDoc = (Document) object;
suppDoc.delete(true);

  public List<Tree<ObjectType>> getDescendants(int depth) {
    return session.getTypeDescendants(objectType.getId(), depth, true);
  }
}

  @Override
  public Object call() throws Exception {
    session.delete(objectId, allVersions);
    return null;
  }
}

  @Override
  public ContentStream call() throws Exception {
    return session.getContentStream(docId, streamId, offset, length);
  }
}

  @Override
  public Acl call() throws Exception {
    return session.setAcl(objectId, aces);
  }
}