Examples of org.apache.commons.net.pop3.POP3Client.retrieveMessage()

Class org.apache.commons.net.pop3.POP3Client

Examples of org.apache.commons.net.pop3.POP3Client.retrieveMessage()

org.apache.commons.net.pop3.POP3Client.retrieveMessage()
Retrieve a message from the POP3 server. A retrieve message attempt can only succeed if the client is in the {@link org.apache.commons.net.pop3.POP3#TRANSACTION_STATE TRANSACTION_STATE }. Returns a DotTerminatedMessageReader instance from which the entire message can be read. Returns null if the retrieval attempt fails (e.g., if the specified message number does not exist).
You must not issue any commands to the POP3 server (i.e., call any other methods) until you finish reading the message from the returned Reader instance. The POP3 protocol uses the same stream for issuing commands as it does for returning results. Therefore the returned Reader actually reads directly from the POP3 connection. After the end of message has been reached, new commands can be executed and their replies read. If you do not follow these requirements, your program will not work properly.
@param messageId The number of the message to fetch. @return A DotTerminatedMessageReader instancefrom which the entire message can be read. Returns null if the retrieval attempt fails (e.g., if the specified message number does not exist). @exception IOException If a network I/O error occurs in the process ofsending the retrieve message command.

    // Login
    boolean loginSuccess = client.login(TEST_ACCOUNT, TEST_PASSWORD);
    assertThat(loginSuccess, is(true));


    // RETR message
    Reader retrMessage = client.retrieveMessage(1);
    assertThat(retrMessage, notNullValue());


    checkMessage(EMAIL_SIMPLE, retrMessage);
    retrMessage.close();

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    checkMessage(EMAIL_SIMPLE, retrMessage);
    retrMessage.close();
    
        // RETR non-existing message
    retrMessage = client.retrieveMessage(10);
        assertThat(retrMessage, nullValue());
        
        // Delete and RETR the message again
    boolean deleteResult = client.deleteMessage(1);
    assertThat(deleteResult, is(true));

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        // Delete and RETR the message again
    boolean deleteResult = client.deleteMessage(1);
    assertThat(deleteResult, is(true));
    
    retrMessage = client.retrieveMessage(1);
        assertThat(retrMessage, nullValue());
  }
  
  @Test
  public void testTop() throws IOException

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            POP3Client client =  new POP3Client();
            client.connect(address.getAddress().getHostAddress(), address.getPort());
            
            assertTrue(client.login("valid", "valid"));
            Reader reader = client.retrieveMessage(1);
            assertNotNull(reader);
            checkMessage(MESSAGE1, reader);
            reader.close();
            
            // does not exist

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            assertNotNull(reader);
            checkMessage(MESSAGE1, reader);
            reader.close();
            
            // does not exist
            reader = client.retrieveMessage(10);
            assertNull(reader);
            
            
            // delete and check for the message again, should now be deleted
            assertTrue(client.deleteMessage(1));

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            assertNull(reader);
            
            
            // delete and check for the message again, should now be deleted
            assertTrue(client.deleteMessage(1));
            reader = client.retrieveMessage(1);
            assertNull(reader);


            
            assertTrue(client.logout());

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            client.connect(address.getAddress().getHostAddress(), address.getPort());
            assertNull(client.listMessages());
            assertNull(client.listUniqueIdentifiers());
            assertFalse(client.deleteMessage(1));
            assertNull(client.retrieveMessage(1));
            assertNull(client.retrieveMessageTop(1, 10));
            assertNull(client.status());
            assertFalse(client.reset());
            client.logout();

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            client.connect(address.getAddress().getHostAddress(), address.getPort());


            assertTrue(client.login("valid", "valid"));
            assertNotNull(client.listMessages());
            assertNotNull(client.listUniqueIdentifiers());
            Reader reader = client.retrieveMessage(1);
            assertNotNull(reader);
            reader.close();
            assertNotNull(client.status());
            reader = client.retrieveMessageTop(1, 1);
            assertNotNull(reader);

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            messages = pop3.listMessages();
            if (messages != null && messages.length > 0) {
                StringBuffer buffer = null;
                for (int j = 0; j < messages.length; j++) {
                    reader = pop3.retrieveMessage(messages[j].number);
                    if (reader == null) {
                        AxisFault fault = new AxisFault("POP3", "( Could not retrieve message header. )", null, null);
                        throw fault;
                    }

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            messages = pop3.listMessages();
            if (messages != null && messages.length > 0) {
                StringBuffer buffer = null;
                for (int j = 0; j < messages.length; j++) {
                    reader = pop3.retrieveMessage(messages[j].number);
                    if (reader == null) {
                        AxisFault fault = new AxisFault("POP3", "( Could not retrieve message header. )", null, null);
                        throw fault;
                    }

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