FrameworkListener.cpp revision d530592848985ba4edeafeb413eb5ff58c138eab 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16#include <errno.h>
17#include <string.h>
18
19#define LOG_TAG "FrameworkListener"
20
21#include <cutils/log.h>
22
23#include <sysutils/FrameworkListener.h>
24#include <sysutils/FrameworkCommand.h>
25#include <sysutils/SocketClient.h>
26
27FrameworkListener::FrameworkListener(const char *socketName) :
28                            SocketListener(socketName, true) {
29    mCommands = new FrameworkCommandCollection();
30}
31
32bool FrameworkListener::onDataAvailable(SocketClient *c) {
33    char buffer[255];
34    int len;
35
36    if ((len = read(c->getSocket(), buffer, sizeof(buffer) -1)) < 0) {
37        LOGE("read() failed (%s)", strerror(errno));
38        return errno;
39    } else if (!len) {
40        LOGW("Lost connection to client");
41        return false;
42    }
43
44    int offset = 0;
45    int i;
46
47    for (i = 0; i < len; i++) {
48        if (buffer[i] == '\n') {
49            buffer[i] = '\0';
50            dispatchCommand(c, buffer + offset);
51            offset = i + 1;
52        }
53    }
54    return true;
55}
56
57void FrameworkListener::registerCmd(FrameworkCommand *cmd) {
58    mCommands->push_back(cmd);
59}
60
61void FrameworkListener::dispatchCommand(SocketClient *cli, char *cmd) {
62    LOGD("Dispatching '%s'", cmd);
63    char *cm, *last;
64
65    if (!(cm = strtok_r(cmd, ":", &last))) {
66        cli->sendMsg(500, "Malformatted message", false);
67        return;
68    }
69
70    FrameworkCommandCollection::iterator i;
71
72    for (i = mCommands->begin(); i != mCommands->end(); ++i) {
73        FrameworkCommand *c = *i;
74
75        if (!strcmp(cm, c->getCommand())) {
76            cm += strlen(cm) +1;
77            if (c->runCommand(cli, cm)) {
78                LOGW("Handler '%s' error (%s)", c->getCommand(), strerror(errno));
79            }
80            return;
81        }
82    }
83
84    cli->sendMsg(500, "Command not recognized", false);
85    return;
86}
87