121 lines
3.9 KiB
Java
121 lines
3.9 KiB
Java
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.email.mail.exchange;
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import com.android.email.Email;
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import com.android.email.mail.MessagingException;
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import android.content.Context;
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import android.text.TextUtils;
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import java.net.URI;
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import java.util.HashMap;
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/**
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* Sample code for implementing a new server transport. See also ExchangeStoreExample,
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* ExchangeFolderExample, and ExchangeSenderExample.
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*/
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public class ExchangeTransportExample {
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public static final int CONNECTION_SECURITY_NONE = 0;
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public static final int CONNECTION_SECURITY_SSL_REQUIRED = 1;
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public static final String FOLDER_INBOX = Email.INBOX;
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private static final String TAG = "ExchangeTransportExample";
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private final Context mContext;
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private String mHost;
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private String mDomain;
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private String mUsername;
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private String mPassword;
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private static HashMap<String, ExchangeTransportExample> sUriToInstanceMap =
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new HashMap<String, ExchangeTransportExample>();
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private static final HashMap<String, Integer> sFolderMap = new HashMap<String, Integer>();
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/**
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* Public factory. The transport should be a singleton (per Uri)
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*/
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public synchronized static ExchangeTransportExample getInstance(URI uri, Context context)
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throws MessagingException {
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if (!uri.getScheme().equals("eas") && !uri.getScheme().equals("eas+ssl+")) {
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throw new MessagingException("Invalid scheme");
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}
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final String key = uri.toString();
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ExchangeTransportExample transport = sUriToInstanceMap.get(key);
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if (transport == null) {
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transport = new ExchangeTransportExample(uri, context);
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sUriToInstanceMap.put(key, transport);
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}
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return transport;
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}
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/**
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* Private constructor - use public factory.
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*/
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private ExchangeTransportExample(URI uri, Context context) throws MessagingException {
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mContext = context;
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setUri(uri);
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}
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/**
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* Use the Uri to set up a newly-constructed transport
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* @param uri
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* @throws MessagingException
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*/
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private void setUri(final URI uri) throws MessagingException {
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mHost = uri.getHost();
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if (mHost == null) {
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throw new MessagingException("host not specified");
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}
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mDomain = uri.getPath();
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if (!TextUtils.isEmpty(mDomain)) {
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mDomain = mDomain.substring(1);
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}
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final String userInfo = uri.getUserInfo();
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if (userInfo == null) {
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throw new MessagingException("user information not specifed");
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}
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final String[] uinfo = userInfo.split(":", 2);
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if (uinfo.length != 2) {
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throw new MessagingException("user name and password not specified");
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}
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mUsername = uinfo[0];
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mPassword = uinfo[1];
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}
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/**
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* Blocking call that checks for a useable server connection, credentials, etc.
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* @param uri the server/account to try and connect to
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* @throws MessagingException thrown if the connection, server, account are not useable
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*/
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public void checkSettings(URI uri) throws MessagingException {
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setUri(uri);
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}
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/**
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* Typical helper function: Return existence of a given folder
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*/
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public boolean isFolderAvailable(final String folder) {
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return sFolderMap.containsKey(folder);
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}
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} |