Java Util類代碼示例

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public static RequestBody create(final MediaType contentType, final byte[] content, final int
        offset, final int byteCount) {
    if (content == null) {
        throw new NullPointerException("content == null");
    }
    Util.checkOffsetAndCount((long) content.length, (long) offset, (long) byteCount);
    return new RequestBody() {
        public MediaType contentType() {
            return contentType;
        }

        public long contentLength() {
            return (long) byteCount;
        }

        public void writeTo(BufferedSink sink) throws IOException {
            sink.write(content, offset, byteCount);
        }
    };
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
Response get(Request request) {
    try {
        Closeable snapshot = this.cache.get(urlToKey(request));
        if (snapshot == null) {
            return null;
        }
        try {
            Entry entry = new Entry(snapshot.getSource(0));
            Response response = entry.response(request, snapshot);
            if (entry.matches(request, response)) {
                return response;
            }
            Util.closeQuietly(response.body());
            return null;
        } catch (IOException e) {
            Util.closeQuietly(snapshot);
            return null;
        }
    } catch (IOException e2) {
        return null;
    }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public void evictAll() {
    List<RealConnection> evictedConnections = new ArrayList();
    synchronized (this) {
        Iterator<RealConnection> i = this.connections.iterator();
        while (i.hasNext()) {
            RealConnection connection = (RealConnection) i.next();
            if (connection.allocations.isEmpty()) {
                connection.noNewStreams = true;
                evictedConnections.add(connection);
                i.remove();
            }
        }
    }
    for (RealConnection connection2 : evictedConnections) {
        Util.closeQuietly(connection2.getSocket());
    }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public boolean equals(Object other) {
    if (!(other instanceof Address)) {
        return false;
    }
    Address that = (Address) other;
    if (this.url.equals(that.url) && this.dns.equals(that.dns) && this.authenticator.equals
            (that.authenticator) && this.protocols.equals(that.protocols) && this
            .connectionSpecs.equals(that.connectionSpecs) && this.proxySelector.equals(that
            .proxySelector) && Util.equal(this.proxy, that.proxy) && Util.equal(this
            .sslSocketFactory, that.sslSocketFactory) && Util.equal(this.hostnameVerifier,
            that.hostnameVerifier) && Util.equal(this.certificatePinner, that
            .certificatePinner)) {
        return true;
    }
    return false;
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
private FilterInputStream getFromCache(String url) throws Exception {
    DiskLruCache cache = DiskLruCache.open(CommonUtil.getImageSavePath(), 1, 2, 2*1024*1024);
    cache.flush();
    String key = Util.hash(url);
    final DiskLruCache.Snapshot snapshot;
    try {
        snapshot = cache.get(key);
        if (snapshot == null) {
            return null;
        }
    } catch (IOException e) {
        return null;
    }
    FilterInputStream bodyIn = new FilterInputStream(snapshot.getInputStream(1)) {
        @Override
        public void close() throws IOException {
            snapshot.close();
            super.close();
        }
    };
    return bodyIn;
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
private Request networkRequest(Request request) throws IOException {
    Request.Builder result = request.newBuilder();
    if (request.header("Host") == null) {
        result.header("Host", Util.hostHeader(request.httpUrl()));
    }
    if (request.header("Connection") == null) {
        result.header("Connection", "Keep-Alive");
    }
    if (request.header(AsyncHttpClient.HEADER_ACCEPT_ENCODING) == null) {
        this.transparentGzip = true;
        result.header(AsyncHttpClient.HEADER_ACCEPT_ENCODING, AsyncHttpClient.ENCODING_GZIP);
    }
    CookieHandler cookieHandler = this.client.getCookieHandler();
    if (cookieHandler != null) {
        OkHeaders.addCookies(result, cookieHandler.get(request.uri(), OkHeaders.toMultimap
                (result.build().headers(), null)));
    }
    if (request.header(Network.USER_AGENT) == null) {
        result.header(Network.USER_AGENT, Version.userAgent());
    }
    return result.build();
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
protected void execute() {
    ErrorCode connectionErrorCode = ErrorCode.INTERNAL_ERROR;
    ErrorCode streamErrorCode = ErrorCode.INTERNAL_ERROR;
    try {
        if (!FramedConnection.this.client) {
            this.frameReader.readConnectionPreface();
        }
        while (true) {
            if (!this.frameReader.nextFrame(this)) {
                break;
            }
        }
        connectionErrorCode = ErrorCode.NO_ERROR;
        streamErrorCode = ErrorCode.CANCEL;
    } catch (IOException e) {
        connectionErrorCode = ErrorCode.PROTOCOL_ERROR;
        streamErrorCode = ErrorCode.PROTOCOL_ERROR;
    } finally {
        try {
            FramedConnection.this.close(connectionErrorCode, streamErrorCode);
        } catch (IOException e2) {
        }
        Util.closeQuietly(this.frameReader);
    }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
private ConnectionSpec supportedSpec(SSLSocket sslSocket, boolean isFallback) {
    String[] cipherSuitesIntersection;
    String[] tlsVersionsIntersection;
    if (this.cipherSuites != null) {
        cipherSuitesIntersection = (String[]) Util.intersect(String.class, this.cipherSuites,
                sslSocket.getEnabledCipherSuites());
    } else {
        cipherSuitesIntersection = sslSocket.getEnabledCipherSuites();
    }
    if (this.tlsVersions != null) {
        tlsVersionsIntersection = (String[]) Util.intersect(String.class, this.tlsVersions,
                sslSocket.getEnabledProtocols());
    } else {
        tlsVersionsIntersection = sslSocket.getEnabledProtocols();
    }
    if (isFallback && Util.contains(sslSocket.getSupportedCipherSuites(),
            "TLS_FALLBACK_SCSV")) {
        cipherSuitesIntersection = Util.concat(cipherSuitesIntersection, "TLS_FALLBACK_SCSV");
    }
    return new Builder(this).cipherSuites(cipherSuitesIntersection).tlsVersions
            (tlsVersionsIntersection).build();
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public synchronized void cancel(Object tag) {
    for (AsyncCall call : this.readyCalls) {
        if (Util.equal(tag, call.tag())) {
            call.cancel();
        }
    }
    for (AsyncCall call2 : this.runningCalls) {
        if (Util.equal(tag, call2.tag())) {
            call2.get().canceled = true;
            HttpEngine engine = call2.get().engine;
            if (engine != null) {
                engine.cancel();
            }
        }
    }
    for (Call call3 : this.executedCalls) {
        if (Util.equal(tag, call3.tag())) {
            call3.cancel();
        }
    }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public static Handshake get(SSLSession session) {
    String cipherSuite = session.getCipherSuite();
    if (cipherSuite == null) {
        throw new IllegalStateException("cipherSuite == null");
    }
    Certificate[] peerCertificates;
    List<Certificate> peerCertificatesList;
    List<Certificate> localCertificatesList;
    try {
        peerCertificates = session.getPeerCertificates();
    } catch (SSLPeerUnverifiedException e) {
        peerCertificates = null;
    }
    if (peerCertificates != null) {
        peerCertificatesList = Util.immutableList(peerCertificates);
    } else {
        peerCertificatesList = Collections.emptyList();
    }
    Certificate[] localCertificates = session.getLocalCertificates();
    if (localCertificates != null) {
        localCertificatesList = Util.immutableList(localCertificates);
    } else {
        localCertificatesList = Collections.emptyList();
    }
    return new Handshake(cipherSuite, peerCertificatesList, localCertificatesList);
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
public final byte[] bytes() throws IOException {
  long contentLength = contentLength();
  if (contentLength > Integer.MAX_VALUE) {
    throw new IOException("Cannot buffer entire body for content length: " + contentLength);
  }

  if (contentLength != -1) {
    byte[] content = new byte[(int) contentLength];
    InputStream in = byteStream();
    Util.readFully(in, content);
    if (in.read() != -1) throw new IOException("Content-Length and stream length disagree");
    return content;

  } else {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    Util.copy(byteStream(), out);
    return out.toByteArray();
  }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
/**
 * Releases this engine so that its resources may be either reused or
 * closed. Also call {@link #automaticallyReleaseConnectionToPool} unless
 * the connection will be used to follow a redirect.
 */
public final void release(boolean streamCanceled) {
  // If the response body comes from the cache, close it.
  if (responseBodyIn == cachedResponseBody) {
    Util.closeQuietly(responseBodyIn);
  }

  if (!connectionReleased && connection != null) {
    connectionReleased = true;

    if (transport == null
        || !transport.makeReusable(streamCanceled, requestBodyOut, responseTransferIn)) {
      Util.closeQuietly(connection);
      connection = null;
    } else if (automaticallyReleaseConnectionToPool) {
      client.getConnectionPool().recycle(connection);
      connection = null;
    }
  }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
private void readChunkSize() throws IOException {
  // read the suffix of the previous chunk
  if (bytesRemainingInChunk != NO_CHUNK_YET) {
    Util.readAsciiLine(in);
  }
  String chunkSizeString = Util.readAsciiLine(in);
  int index = chunkSizeString.indexOf(";");
  if (index != -1) {
    chunkSizeString = chunkSizeString.substring(0, index);
  }
  try {
    bytesRemainingInChunk = Integer.parseInt(chunkSizeString.trim(), 16);
  } catch (NumberFormatException e) {
    throw new ProtocolException("Expected a hex chunk size but was " + chunkSizeString);
  }
  if (bytesRemainingInChunk == 0) {
    hasMoreChunks = false;
    RawHeaders rawResponseHeaders = httpEngine.responseHeaders.getHeaders();
    RawHeaders.readHeaders(transport.socketIn, rawResponseHeaders);
    httpEngine.receiveHeaders(rawResponseHeaders);
    endOfInput();
  }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
/**
 * Discards the response body so that the connection can be reused. This
 * needs to be done judiciously, since it delays the current request in
 * order to speed up a potential future request that may never occur.
 *
 * <p>A stream may be discarded to encourage response caching (a response
 * cannot be cached unless it is consumed completely) or to enable connection
 * reuse.
 */
private static boolean discardStream(HttpEngine httpEngine, InputStream responseBodyIn) {
  Connection connection = httpEngine.connection;
  if (connection == null) return false;
  Socket socket = connection.getSocket();
  if (socket == null) return false;
  try {
    int socketTimeout = socket.getSoTimeout();
    socket.setSoTimeout(DISCARD_STREAM_TIMEOUT_MILLIS);
    try {
      Util.skipAll(responseBodyIn);
      return true;
    } finally {
      socket.setSoTimeout(socketTimeout);
    }
  } catch (IOException e) {
    return false;
  }
}
 

import com.squareup.okhttp.internal.Util; //導入依賴的package包/類
@Override
public void close() throws IOException {
    if (!mClosed) {
        Util.closeQuietly(mFileOutputStream);
        mByteArrayOutputStream.reset();
        mClosed = true;
    }
}