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Use try-with-resources in some places

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This commit is contained in:
tonymanou 2017-01-12 02:02:52 +01:00 committed by topjohnwu
parent 57e6f3080c
commit 21b00ac6ca
5 changed files with 27 additions and 33 deletions
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4
app/src/main/java/com/topjohnwu/magisk/AboutActivity.java
View File

@ -63,13 +63,11 @@ public class AboutActivity extends AppCompatActivity {
appVersionInfo.setSummary(BuildConfig.VERSION_NAME);
String changes = null;
try {
InputStream is = getAssets().open("changelog.html");
try (InputStream is = getAssets().open("changelog.html")) {
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
changes = new String(buffer);
} catch (IOException ignored) {

6
app/src/main/java/com/topjohnwu/magisk/LogFragment.java
View File

@ -182,14 +182,10 @@ public class LogFragment extends Fragment {
List<String> in = Utils.readFile(MAGISK_LOG);
try {
FileWriter out = new FileWriter(targetFile);
try (FileWriter out = new FileWriter(targetFile)) {
for (String line : in) {
out.write(line + "\n");
}
out.close();
return true;
} catch (IOException e) {
e.printStackTrace();

6
app/src/main/java/com/topjohnwu/magisk/receivers/RepoDlReceiver.java
View File

@ -33,9 +33,9 @@ public class RepoDlReceiver extends DownloadReceiver {
ZipUtils.signZip(mContext, buffer.getInputStream(), buffer, true);
// Write it back to the downloaded zip
OutputStream out = mContext.getContentResolver().openOutputStream(mUri);
buffer.writeTo(out);
out.close();
try (OutputStream out = mContext.getContentResolver().openOutputStream(mUri)) {
buffer.writeTo(out);
}
}
}.exec();
}

18
app/src/main/java/com/topjohnwu/magisk/utils/Async.java
View File

@ -194,21 +194,21 @@ public class Async {
protected void copyToCache() throws Throwable {
publishProgress(mContext.getString(R.string.copying_msg));
try {
InputStream in = mContext.getContentResolver().openInputStream(mUri);
mCachedFile = new File(mContext.getCacheDir().getAbsolutePath() + "/install.zip");
if (mCachedFile.exists() && !mCachedFile.delete()) {
throw new IOException();
}
OutputStream outputStream = new FileOutputStream(mCachedFile);
mCachedFile = new File(mContext.getCacheDir().getAbsolutePath() + "/install.zip");
if (mCachedFile.exists() && !mCachedFile.delete()) {
Log.e(Logger.TAG, "FlashZip: Error while deleting already existing file");
throw new IOException();
}
try (
InputStream in = mContext.getContentResolver().openInputStream(mUri);
OutputStream outputStream = new FileOutputStream(mCachedFile)
) {
byte buffer[] = new byte[1024];
int length;
while ((length = in.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
outputStream.close();
Logger.dev("FlashZip: File created successfully - " + mCachedFile.getPath());
in.close();
} catch (FileNotFoundException e) {
Log.e(Logger.TAG, "FlashZip: Invalid Uri");
throw e;

26
app/src/main/java/com/topjohnwu/magisk/utils/ZipUtils.java
View File

@ -125,17 +125,16 @@ public class ZipUtils {
}
public static void unzip(File file, File folder, String path) {
try {
int count;
FileOutputStream out;
File dest;
InputStream is;
JarEntry entry;
byte data[] = new byte[4096];
JarFile zipfile = new JarFile(file);
Enumeration e = zipfile.entries();
int count;
FileOutputStream out;
File dest;
InputStream is;
JarEntry entry;
byte data[] = new byte[4096];
try (JarFile zipfile = new JarFile(file)) {
Enumeration<JarEntry> e = zipfile.entries();
while(e.hasMoreElements()) {
entry = (JarEntry) e.nextElement();
entry = e.nextElement();
if (!entry.getName().contains(path)
|| entry.getName().charAt(entry.getName().length() - 1) == '/') {
// Ignore directories, only create files
@ -518,9 +517,10 @@ public class ZipUtils {
.build(signer, publicKey));
gen.addCertificates(certs);
CMSSignedData sigData = gen.generate(data, false);
ASN1InputStream asn1 = new ASN1InputStream(sigData.getEncoded());
DEROutputStream dos = new DEROutputStream(out);
dos.writeObject(asn1.readObject());
try (ASN1InputStream asn1 = new ASN1InputStream(sigData.getEncoded())) {
DEROutputStream dos = new DEROutputStream(out);
dos.writeObject(asn1.readObject());
}
}
/**
* Copy all the files in a manifest from input to output. We set