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Add book model

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This commit is contained in:
Hover Ruan
2013-02-19 18:28:04 +08:00
parent 33d306537b
commit c14223600c
15 changed files with 504 additions and 111 deletions
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AndroidManifest.xml
+2 -2
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.github.hoverruan.libr" android:versionCode="1" android:versionName="1.0-SNAPSHOT">
package="com.github.hoverruan.libr.mobile" android:versionCode="1" android:versionName="1.0-SNAPSHOT">
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="16"/>
@@ -8,7 +8,7 @@
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<application android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@android:style/Theme.Holo">
<activity android:name=".MainActivity">
<activity android:name=".ui.MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
pom.xml
+11
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@@ -19,11 +19,22 @@
<version>${platform.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>support-v4</artifactId>
<version>r7</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.2.2</version>
</dependency>
</dependencies>
<build>
res/layout/main.xml
+2 -2
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@@ -7,10 +7,10 @@
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/fetchBooksInfo"
android:text="@string/fetch_books_info"
android:id="@+id/button"/>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/responseContent" android:layout_gravity="left|center_vertical"/>
android:id="@+id/response_content" android:layout_gravity="left|center_vertical"/>
</LinearLayout>
res/values/strings.xml
+3 -1
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@@ -1,5 +1,7 @@
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">Libr Client</string>
<string name="fetchBooksInfo">Get books info</string>
<string name="fetch_books_info">Get books info</string>
<string name="failed_download">Failed to download content</string>
<string name="failed_not_connected">No available connection</string>
</resources>
src/main/java/com/github/hoverruan/libr/MainActivity.java
-106
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@@ -1,106 +0,0 @@
package com.github.hoverruan.libr;
import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* @author Hover Ruan
*/
public class MainActivity extends Activity {
public static final String LIBR = "LIBR";
private TextView responseContentView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
responseContentView = (TextView) findViewById(R.id.responseContent);
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (!isConnected()) {
return;
}
new DownloadBooksInfo().execute("http://libr.herokuapp.com/api/books");
}
});
}
private boolean isConnected() {
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
return networkInfo != null && networkInfo.isConnected();
}
private class DownloadBooksInfo extends AsyncTask<String, Void, String> {
protected String doInBackground(String... urls) {
try {
return downloadFromUrl(urls[0]);
} catch (IOException e) {
Log.e(LIBR, "Unable to retrieve books info");
return "";
}
}
private String downloadFromUrl(String myurl) throws IOException {
InputStream is = null;
// Only display the first 500 characters of the retrieved
// web page content.
int len = 500;
try {
URL url = new URL(myurl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
int response = conn.getResponseCode();
Log.d(LIBR, "The response is: " + response);
is = conn.getInputStream();
// Convert the InputStream into a string
return readIt(is, len);
} finally {
if (is != null) {
is.close();
}
}
}
private String readIt(InputStream stream, int len) throws IOException {
Reader reader = new InputStreamReader(stream, "UTF-8");
char[] buffer = new char[len];
reader.read(buffer);
return new String(buffer);
}
protected void onPostExecute(String booksInfoText) {
responseContentView.setText(booksInfoText);
}
}
}
src/main/java/com/github/hoverruan/libr/mobile/LibrConstants.java
+8
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@@ -0,0 +1,8 @@
package com.github.hoverruan.libr.mobile;
/**
* @author Hover Ruan
*/
public class LibrConstants {
public static final String TAG = "Libr";
}
src/main/java/com/github/hoverruan/libr/mobile/domain/Book.java
+72
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@@ -0,0 +1,72 @@
package com.github.hoverruan.libr.mobile.domain;
import java.util.Date;
/**
* @author Hover Ruan
*/
public class Book {
private long id;
private User author;
private Date createdAt;
private Date updatedAt;
private String image;
private String isbn;
private String name;
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public User getAuthor() {
return author;
}
public void setAuthor(User author) {
this.author = author;
}
public Date getCreatedAt() {
return createdAt;
}
public void setCreatedAt(Date createdAt) {
this.createdAt = createdAt;
}
public Date getUpdatedAt() {
return updatedAt;
}
public void setUpdatedAt(Date updatedAt) {
this.updatedAt = updatedAt;
}
public String getImage() {
return image;
}
public void setImage(String image) {
this.image = image;
}
public String getIsbn() {
return isbn;
}
public void setIsbn(String isbn) {
this.isbn = isbn;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
src/main/java/com/github/hoverruan/libr/mobile/domain/BookList.java
+45
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@@ -0,0 +1,45 @@
package com.github.hoverruan.libr.mobile.domain;
import java.util.List;
/**
* @author Hover Ruan
*/
public class BookList {
private List<Book> books;
private int currentPage;
private int totalPage;
private int totalCount;
public List<Book> getBooks() {
return books;
}
public void setBooks(List<Book> books) {
this.books = books;
}
public int getCurrentPage() {
return currentPage;
}
public void setCurrentPage(int currentPage) {
this.currentPage = currentPage;
}
public int getTotalPage() {
return totalPage;
}
public void setTotalPage(int totalPage) {
this.totalPage = totalPage;
}
public int getTotalCount() {
return totalCount;
}
public void setTotalCount(int totalCount) {
this.totalCount = totalCount;
}
}
src/main/java/com/github/hoverruan/libr/mobile/domain/BookParser.java
+19
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@@ -0,0 +1,19 @@
package com.github.hoverruan.libr.mobile.domain;
import com.google.gson.FieldNamingPolicy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
/**
* @author Hover Ruan
*/
public class BookParser {
public BookList parseBookList(String json) {
GsonBuilder builder = new GsonBuilder();
builder.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES);
builder.setDateFormat("yyyy-MM-dd'T'HH:mm:ss");
Gson gson = builder.create();
return gson.fromJson(json, BookList.class);
}
}
src/main/java/com/github/hoverruan/libr/mobile/domain/User.java
+7
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@@ -0,0 +1,7 @@
package com.github.hoverruan.libr.mobile.domain;
/**
* @author Hover Ruan
*/
public class User {
}
src/main/java/com/github/hoverruan/libr/mobile/ui/MainActivity.java
+61
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@@ -0,0 +1,61 @@
package com.github.hoverruan.libr.mobile.ui;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import com.github.hoverruan.libr.mobile.R;
import com.github.hoverruan.libr.mobile.domain.Book;
import com.github.hoverruan.libr.mobile.domain.BookList;
import com.github.hoverruan.libr.mobile.domain.BookParser;
import com.github.hoverruan.libr.mobile.util.DownloadTask;
import java.util.List;
/**
* @author Hover Ruan
*/
public class MainActivity extends Activity {
private TextView responseContentView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
responseContentView = (TextView) findViewById(R.id.response_content);
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
new DownloadBooksInfo().execute("http://libr.herokuapp.com/api/books");
}
});
}
private class DownloadBooksInfo extends DownloadTask {
private DownloadBooksInfo() {
super(MainActivity.this);
}
@Override
protected void onPostExecute(String booksInfoText) {
if (booksInfoText != null) {
BookList bookList = new BookParser().parseBookList(booksInfoText);
responseContentView.setText(String.format("Got %d books:\n%s", bookList.getTotalCount(),
getAllBooksName(bookList.getBooks())));
}
}
private String getAllBooksName(List<Book> books) {
StringBuilder buf = new StringBuilder();
for (Book book : books) {
buf.append(book.getName()).append('\n');
}
buf.append("...\n");
return buf.toString();
}
}
}
src/main/java/com/github/hoverruan/libr/mobile/util/DownloadTask.java
+86
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@@ -0,0 +1,86 @@
package com.github.hoverruan.libr.mobile.util;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.util.Log;
import com.github.hoverruan.libr.mobile.LibrConstants;
import static com.github.hoverruan.libr.mobile.LibrConstants.TAG;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.HttpURLConnection;
import java.net.URL;
/**
* @author Hover Ruan
*/
public class DownloadTask extends AsyncTask<String, Void, String> {
private Context context;
public DownloadTask(Context context) {
this.context = context;
}
protected String doInBackground(String... urls) {
if (!isConnected()) {
Log.w(LibrConstants.TAG, "No available connection");
return null;
}
try {
return downloadFromUrl(urls[0]);
} catch (IOException e) {
Log.e(LibrConstants.TAG, "Failed to download content");
return null;
}
}
private String downloadFromUrl(String resourceUrl) throws IOException {
InputStream is = null;
try {
URL url = new URL(resourceUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
int response = conn.getResponseCode();
Log.d(TAG, "The response is: " + response);
is = conn.getInputStream();
// Convert the InputStream into a string
return readIt(is);
} finally {
if (is != null) {
is.close();
}
}
}
private String readIt(InputStream stream) throws IOException {
Reader reader = new InputStreamReader(stream, "UTF-8");
char[] buffer = new char[1024];
StringBuilder builder = new StringBuilder();
int len;
while ((len = reader.read(buffer)) > 0) {
builder.append(buffer, 0, len);
}
return builder.toString();
}
private boolean isConnected() {
ConnectivityManager connectivityManager =
(ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
return networkInfo != null && networkInfo.isConnected();
}
}
src/main/java/com/github/hoverruan/libr/mobile/util/ToastUtils.java
+22
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@@ -0,0 +1,22 @@
package com.github.hoverruan.libr.mobile.util;
import android.content.Context;
import android.widget.Toast;
/**
* @author Hover Ruan
*/
public class ToastUtils {
public static void show(final Context context, final String message) {
Toast.makeText(context, message, Toast.LENGTH_LONG).show();
}
public static void show(final Context context, final int resId) {
if (context == null)
return;
show(context, context.getString(resId));
}
}
src/test/java/com/github/hoverruan/libr/mobile/domain/BookParserTest.java
+74
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@@ -0,0 +1,74 @@
package com.github.hoverruan.libr.mobile.domain;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;
import org.junit.Before;
import org.junit.Test;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.List;
/**
* @author Hover Ruan
*/
public class BookParserTest {
private BookParser bookParser;
@Before
public void setUp() {
bookParser = new BookParser();
}
@Test
public void should_parse_BookList_from_JSON() throws Exception {
String content = readResource("/com/github/hoverruan/libr/mobile/domain/books.json");
BookList bookList = bookParser.parseBookList(content);
assertThat(bookList, is(notNullValue()));
assertThat(bookList.getCurrentPage(), is(1));
assertThat(bookList.getTotalPage(), is(11));
assertThat(bookList.getTotalCount(), is(106));
List<Book> books = bookList.getBooks();
assertThat(books.size(), is(10));
Book firstBook = books.get(0);
assertThat(firstBook.getAuthor(), is(nullValue()));
assertThat(firstBook.getCreatedAt(), is(notNullValue()));
assertThat(firstBook.getUpdatedAt(), is(notNullValue()));
assertThat(firstBook.getName(), is("金矿"));
assertThat(firstBook.getId(), is(26L));
assertThat(firstBook.getIsbn(), is("9787111316657"));
assertThat(firstBook.getImage(), is("http://img3.douban.com/mpic/s4483293.jpg"));
}
protected String readResource(String path) throws Exception {
BufferedReader reader = null;
StringWriter result;
try {
InputStream inputStream = getClass().getResourceAsStream(path);
reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
result = new StringWriter();
PrintWriter out = new PrintWriter(result);
String line;
while ((line = reader.readLine()) != null) {
out.println(line);
}
} finally {
if (reader != null) {
reader.close();
}
}
return result.toString();
}
}
src/test/resources/com/github/hoverruan/libr/mobile/domain/books.json
+92
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@@ -0,0 +1,92 @@
{"books": [
{
"author": null,
"created_at": "2013-02-06T16:33:20+08:00",
"id": 26,
"image": "http://img3.douban.com/mpic/s4483293.jpg",
"isbn": "9787111316657",
"name": "\u91d1\u77ff",
"updated_at": "2013-02-06T16:33:20+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:34:01+08:00",
"id": 27,
"image": "http://img3.douban.com/mpic/s5822197.jpg",
"isbn": "9787506021395",
"name": "\u4e30\u7530\u73b0\u573a\u7ba1\u7406\u65b9\u5f0f",
"updated_at": "2013-02-06T16:34:01+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:34:30+08:00",
"id": 28,
"image": "http://img3.douban.com/mpic/s5779456.jpg",
"isbn": "9787500590842",
"name": "\u4e30\u7530\u6c7d\u8f66\u7cbe\u76ca\u6a21\u5f0f\u7684\u5b9e\u8df5",
"updated_at": "2013-02-06T16:34:30+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:34:39+08:00",
"id": 29,
"image": "http://img3.douban.com/mpic/s4655120.jpg",
"isbn": "9787111330134",
"name": "\u4e30\u7530\u6a21\u5f0f",
"updated_at": "2013-02-06T16:34:39+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:34:52+08:00",
"id": 30,
"image": "http://img3.douban.com/mpic/s8855346.jpg",
"isbn": "9787111357933",
"name": "\u4f1a\u601d\u8003\u7684\u4e30\u7530\u73b0\u573a",
"updated_at": "2013-02-06T16:34:52+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:35:07+08:00",
"id": 31,
"image": "http://img3.douban.com/mpic/s21572450.jpg",
"isbn": "9787506049856",
"name": "\u4e30\u7530\u73b0\u573a\u7684\u4eba\u624d\u57f9\u80b2",
"updated_at": "2013-02-06T16:35:07+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:35:31+08:00",
"id": 32,
"image": "http://img3.douban.com/mpic/s1222816.jpg",
"isbn": "9787532734191",
"name": "\u6d77\u8fb9\u7684\u5361\u592b\u5361",
"updated_at": "2013-02-06T16:35:31+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:36:10+08:00",
"id": 33,
"image": "http://img3.douban.com/mpic/s4130817.jpg",
"isbn": "9787115218858",
"name": "\u8f6f\u4ef6\u8c03\u8bd5\u5b9e\u6218",
"updated_at": "2013-02-06T16:36:10+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:36:24+08:00",
"id": 34,
"image": "http://img3.douban.com/mpic/s6883275.jpg",
"isbn": "9787115259653",
"name": "\u8f6f\u4ef6\u9879\u76ee\u6210\u529f\u4e4b\u9053",
"updated_at": "2013-02-06T16:36:24+08:00"
},
{
"author": null,
"created_at": "2013-02-06T16:36:39+08:00",
"id": 35,
"image": "http://img3.douban.com/mpic/s4409220.jpg",
"isbn": "9787111301936",
"name": "\u8f6f\u4ef6\u9879\u76ee\u7ba1\u7406\u4e0e\u654f\u6377\u65b9\u6cd5",
"updated_at": "2013-02-06T16:36:39+08:00"
}
], "current_page": "1", "total_page": 11, "total_count": 106}