Example usage for java.io ObjectOutputStream ObjectOutputStream

List of usage examples for java.io ObjectOutputStream ObjectOutputStream

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Introduction

In this page you can find the example usage for java.io ObjectOutputStream ObjectOutputStream.

Prototype

public ObjectOutputStream(OutputStream out) throws IOException

Source Link

Document

Creates an ObjectOutputStream that writes to the specified OutputStream.

Usage

From source file:de.hanbei.httpserver.response.ResponseBuilder.java

/**
 * Set the content of the response as any object. The content length is induced from the serialized object.
 *
 * @param content The content as as an object.
 * @return A ResponseBuilder to add additional information.
 *//*  ww  w  .j  a v  a 2 s  . c  om*/
public ResponseBuilder content(Object content) {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    try {
        ObjectOutputStream objectOut = new ObjectOutputStream(bytes);
        objectOut.writeObject(content);
    } catch (IOException e) {
        throw new ContentException(e);
    }
    content(bytes.toByteArray());
    return this;
}

From source file:FileGameAccess.java

@SuppressWarnings("resource")
private boolean saveSerialize(Serializable obj, String fName) {
    FileOutputStream fout;/*from ww w  .j  a  v  a 2s.  c  o m*/
    try {
        fout = new FileOutputStream(fName, false);
    } catch (FileNotFoundException ex) {
        Logger.getLogger(FileGameAccess.class.getName()).log(Level.SEVERE, null, ex);
        return false;
    }

    ObjectOutputStream oos;
    try {
        oos = new ObjectOutputStream(fout);
    } catch (IOException ex) {
        Logger.getLogger(FileGameAccess.class.getName()).log(Level.SEVERE, null, ex);
        return false;
    }

    try {
        oos.writeObject(obj);
        oos.close();
        fout.close();
    } catch (IOException ex) {
        Logger.getLogger(FileGameAccess.class.getName()).log(Level.SEVERE, null, ex);
        return false;
    }
    return true;
}

From source file:com.linkedin.sample.test.java

public static void main1(String[] args) {

    /*/*www  .java2s  . c  o  m*/
    we need a OAuthService to handle authentication and the subsequent calls.
    Since we are going to use the REST APIs we need to generate a request token as the first step in the call.
    Once we get an access toke we can continue to use that until the API key changes or auth is revoked.
    Therefore, to make this sample easier to re-use we serialize the AuthHandler (which stores the access token) to
    disk and then reuse it.
            
    When you first run this code please insure that you fill in the API_KEY and API_SECRET above with your own
    credentials and if there is a service.dat file in the code please delete it.
            
     */

    //The Access Token is used in all Data calls to the APIs - it basically says our application has been given access
    //to the approved information in LinkedIn
    Token accessToken = null;

    //Using the Scribe library we enter the information needed to begin the chain of Oauth2 calls.
    OAuthService service = new ServiceBuilder().provider(LinkedInApi.class).apiKey(API_KEY)
            .apiSecret(API_SECRET).build();

    /*************************************
     * This first piece of code handles all the pieces needed to be granted access to make a data call
     */

    try {
        File file = new File("service.dat");

        if (file.exists()) {
            //if the file exists we assume it has the AuthHandler in it - which in turn contains the Access Token
            ObjectInputStream inputStream = new ObjectInputStream(new FileInputStream(file));
            AuthHandler authHandler = (AuthHandler) inputStream.readObject();
            accessToken = authHandler.getAccessToken();
        } else {
            System.out.println("There is no stored Access token we need to make one");
            //In the constructor the AuthHandler goes through the chain of calls to create an Access Token
            AuthHandler authHandler = new AuthHandler(service);
            ObjectOutputStream outputStream = new ObjectOutputStream(new FileOutputStream("service.dat"));
            outputStream.writeObject(authHandler);
            outputStream.close();
            accessToken = authHandler.getAccessToken();
        }

    } catch (Exception e) {
        System.out.println("Threw an exception when serializing: " + e.getClass() + " :: " + e.getMessage());
    }

    /*
     * We are all done getting access - time to get busy getting data
     *************************************/

    /**************************
     *
     * Querying the LinkedIn API
     *
     **************************/

    System.out.println();
    System.out.println("********A basic user profile call********");
    //The ~ means yourself - so this should return the basic default information for your profile in XML format
    //https://developer.linkedin.com/documents/profile-api
    String url = "http://api.linkedin.com/v1/people/~";
    OAuthRequest request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    Response response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********Get the profile in JSON********");
    //This basic call profile in JSON format
    //You can read more about JSON here http://json.org
    url = "http://api.linkedin.com/v1/people/~";
    request = new OAuthRequest(Verb.GET, url);
    request.addHeader("x-li-format", "json");
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********Get the profile in JSON using query parameter********");
    //This basic call profile in JSON format. Please note the call above is the preferred method.
    //You can read more about JSON here http://json.org
    url = "http://api.linkedin.com/v1/people/~";
    request = new OAuthRequest(Verb.GET, url);
    request.addQuerystringParameter("format", "json");
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********Get my connections - going into a resource********");
    //This basic call gets all your connections each one will be in a person tag with some profile information
    //https://developer.linkedin.com/documents/connections-api
    url = "http://api.linkedin.com/v1/people/~/connections";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********Get only 10 connections - using parameters********");
    //This basic call gets only 10 connections  - each one will be in a person tag with some profile information
    //https://developer.linkedin.com/documents/connections-api
    //more basic about query strings in a URL here http://en.wikipedia.org/wiki/Query_string
    url = "http://api.linkedin.com/v1/people/~/connections";
    request = new OAuthRequest(Verb.GET, url);
    request.addQuerystringParameter("count", "10");
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********GET network updates that are CONN and SHAR********");
    //This basic call get connection updates from your connections
    //https://developer.linkedin.com/documents/get-network-updates-and-statistics-api
    //specifics on updates  https://developer.linkedin.com/documents/network-update-types

    url = "http://api.linkedin.com/v1/people/~/network/updates";
    request = new OAuthRequest(Verb.GET, url);
    request.addQuerystringParameter("type", "SHAR");
    request.addQuerystringParameter("type", "CONN");
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********People Search using facets and Encoding input parameters i.e. UTF8********");
    //This basic call get connection updates from your connections
    //https://developer.linkedin.com/documents/people-search-api#Facets
    //Why doesn't this look like
    //people-search?title=developer&location=fr&industry=4

    //url = "http://api.linkedin.com/v1/people-search?title=D%C3%A9veloppeur&facets=location,industry&facet=location,fr,0";
    url = "http://api.linkedin.com/v1/people-search:(people:(first-name,last-name,headline),facets:(code,buckets))";
    request = new OAuthRequest(Verb.GET, url);
    request.addQuerystringParameter("title", "Dveloppeur");
    request.addQuerystringParameter("facet", "industry,4");
    request.addQuerystringParameter("facets", "location,industry");
    System.out.println(request.getUrl());
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    /////////////////field selectors
    System.out.println("********A basic user profile call with field selectors********");
    //The ~ means yourself - so this should return the basic default information for your profile in XML format
    //https://developer.linkedin.com/documents/field-selectors
    url = "http://api.linkedin.com/v1/people/~:(first-name,last-name,positions)";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getHeaders().toString());
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out
            .println("********A basic user profile call with field selectors going into a subresource********");
    //The ~ means yourself - so this should return the basic default information for your profile in XML format
    //https://developer.linkedin.com/documents/field-selectors
    url = "http://api.linkedin.com/v1/people/~:(first-name,last-name,positions:(company:(name)))";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getHeaders().toString());
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********A basic user profile call into a subresource return data in JSON********");
    //The ~ means yourself - so this should return the basic default information for your profile
    //https://developer.linkedin.com/documents/field-selectors
    url = "https://api.linkedin.com/v1/people/~/connections:(first-name,last-name,headline)?format=json";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getHeaders().toString());
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    System.out.println("********A more complicated example using postings into groups********");
    //https://developer.linkedin.com/documents/field-selectors
    //https://developer.linkedin.com/documents/groups-api
    url = "http://api.linkedin.com/v1/groups/3297124/posts:(id,category,creator:(id,first-name,last-name),title,summary,creation-timestamp,site-group-post-url,comments,likes)";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    System.out.println(response.getHeaders().toString());
    System.out.println(response.getBody());
    System.out.println();
    System.out.println();

    /**************************
     *
     * Wrting to the LinkedIn API
     *
     **************************/

    /*
     * Commented out so we don't write into your LinkedIn/Twitter feed while you are just testing out
     * some code. Uncomment if you'd like to see writes in action.
     * 
     * 
            System.out.println("********Write to the  share - using XML********");
            //This basic shares some basic information on the users activity stream
            //https://developer.linkedin.com/documents/share-api
            url = "http://api.linkedin.com/v1/people/~/shares";
            request = new OAuthRequest(Verb.POST, url);
            request.addHeader("Content-Type", "text/xml");
            //Make an XML document
            Document doc = DocumentHelper.createDocument();
            Element share = doc.addElement("share");
            share.addElement("comment").addText("Guess who is testing the LinkedIn REST APIs");
            Element content = share.addElement("content");
            content.addElement("title").addText("A title for your share");
            content.addElement("submitted-url").addText("http://developer.linkedin.com");
            share.addElement("visibility").addElement("code").addText("anyone");
            request.addPayload(doc.asXML());
            service.signRequest(accessToken, request);
            response = request.send();
            //there is no body just a header
            System.out.println(response.getBody());
            System.out.println(response.getHeaders().toString());
            System.out.println();System.out.println();
            
            
            System.out.println("********Write to the  share and to Twitter - using XML********");
            //This basic shares some basic information on the users activity stream
            //https://developer.linkedin.com/documents/share-api
            url = "http://api.linkedin.com/v1/people/~/shares";
            request = new OAuthRequest(Verb.POST, url);
            request.addQuerystringParameter("twitter-post","true");
            request.addHeader("Content-Type", "text/xml");
            //Make an XML document
            doc = DocumentHelper.createDocument();
            share = doc.addElement("share");
            share.addElement("comment").addText("Guess who is testing the LinkedIn REST APIs and sending to twitter");
            content = share.addElement("content");
            content.addElement("title").addText("A title for your share");
            content.addElement("submitted-url").addText("http://developer.linkedin.com");
            share.addElement("visibility").addElement("code").addText("anyone");
            request.addPayload(doc.asXML());
            service.signRequest(accessToken, request);
            response = request.send();
            //there is no body just a header
            System.out.println(response.getBody());
            System.out.println(response.getHeaders().toString());
            System.out.println();System.out.println();
            
            
            
            
            
            System.out.println("********Write to the  share and to twitter - using JSON ********");
            //This basic shares some basic information on the users activity stream
            //https://developer.linkedin.com/documents/share-api
            //NOTE - a good troubleshooting step is to validate your JSON on jsonlint.org
            url = "http://api.linkedin.com/v1/people/~/shares";
            request = new OAuthRequest(Verb.POST, url);
            //set the headers to the server knows what we are sending
            request.addHeader("Content-Type", "application/json");
            request.addHeader("x-li-format", "json");
            //make the json payload using json-simple
            Map<String, Object> jsonMap = new HashMap<String, Object>();
            jsonMap.put("comment", "Posting from the API using JSON");
            JSONObject contentObject = new JSONObject();
            contentObject.put("title", "This is a another test post");
            contentObject.put("submitted-url","http://www.linkedin.com");
            contentObject.put("submitted-image-url", "http://press.linkedin.com/sites/all/themes/presslinkedin/images/LinkedIn_WebLogo_LowResExample.jpg");
            jsonMap.put("content", contentObject);
            JSONObject visibilityObject = new JSONObject();
            visibilityObject.put("code", "anyone");
            jsonMap.put("visibility", visibilityObject);
            request.addPayload(JSONValue.toJSONString(jsonMap));
            service.signRequest(accessToken, request);
            response = request.send();
            //again no body - just headers
            System.out.println(response.getBody());
            System.out.println(response.getHeaders().toString());
            System.out.println();System.out.println();
    */

    /**************************
     *
     * Understanding the response, creating logging, request and response headers
     *
     **************************/

    System.out.println();
    System.out.println("********A basic user profile call and response dissected********");
    //This sample is mostly to help you debug and understand some of the scaffolding around the request-response cycle
    //https://developer.linkedin.com/documents/debugging-api-calls
    url = "https://api.linkedin.com/v1/people/~";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();
    //get all the headers
    System.out.println("Request headers: " + request.getHeaders().toString());
    System.out.println("Response headers: " + response.getHeaders().toString());
    //url requested
    System.out.println("Original location is: " + request.getHeaders().get("content-location"));
    //Date of response
    System.out.println("The datetime of the response is: " + response.getHeader("Date"));
    //the format of the response
    System.out.println("Format is: " + response.getHeader("x-li-format"));
    //Content-type of the response
    System.out.println("Content type is: " + response.getHeader("Content-Type") + "\n\n");

    //get the HTTP response code - such as 200 or 404
    int responseNumber = response.getCode();

    if (responseNumber >= 199 && responseNumber < 300) {
        System.out.println("HOORAY IT WORKED!!");
        System.out.println(response.getBody());
    } else if (responseNumber >= 500 && responseNumber < 600) {
        //you could actually raise an exception here in your own code
        System.out.println("Ruh Roh application error of type 500: " + responseNumber);
        System.out.println(response.getBody());
    } else if (responseNumber == 403) {
        System.out.println("A 403 was returned which usually means you have reached a throttle limit");
    } else if (responseNumber == 401) {
        System.out.println("A 401 was returned which is a Oauth signature error");
        System.out.println(response.getBody());
    } else if (responseNumber == 405) {
        System.out.println(
                "A 405 response was received. Usually this means you used the wrong HTTP method (GET when you should POST, etc).");
    } else {
        System.out.println("We got a different response that we should add to the list: " + responseNumber
                + " and report it in the forums");
        System.out.println(response.getBody());
    }
    System.out.println();
    System.out.println();

    System.out.println("********A basic error logging function********");
    // Now demonstrate how to make a logging function which provides us the info we need to
    // properly help debug issues. Please use the logged block from here when requesting
    // help in the forums.
    url = "https://api.linkedin.com/v1/people/FOOBARBAZ";
    request = new OAuthRequest(Verb.GET, url);
    service.signRequest(accessToken, request);
    response = request.send();

    responseNumber = response.getCode();

    if (responseNumber < 200 || responseNumber >= 300) {
        logDiagnostics(request, response);
    } else {
        System.out.println("You were supposed to submit a bad request");
    }

    System.out.println("******Finished******");

}

From source file:it.scoppelletti.programmerpower.web.view.SerializableConverter.java

/**
 * Converte un oggetto in stringa.// w ww. java2  s. c o  m
 * 
 * @param  context Contesto.
 * @param  obj     Oggetto.
 * @return         Stringa risultante.
 */
@Override
@SuppressWarnings("rawtypes")
public String convertToString(Map context, Object obj) {
    ByteArrayOutputStream buf = null;
    ObjectOutputStream out = null;
    Base64 encoder;

    try {
        buf = new ByteArrayOutputStream();
        out = new ObjectOutputStream(buf);

        out.writeObject(obj);
    } catch (IOException ex) {
        throw new TypeConversionException(ApplicationException.toString(ex), ex);
    } finally {
        if (out != null) {
            IOUtils.close(out);
            out = null;
        }
        if (buf != null) {
            IOUtils.close(buf);
        }
    }

    encoder = new Base64(0);
    return encoder.encodeToString(buf.toByteArray());
}

From source file:com.likya.myra.jef.utils.JobQueueOperations.java

public static boolean persistDisabledJobQueue(ConfigurationManager configurationManager,
        HashMap<String, String> jobQueue) {

    FileOutputStream fos = null;//from w  w  w .  j  a v a 2 s . c om
    ObjectOutputStream out = null;

    if (jobQueue.size() == 0) {
        return true;
    }

    try {

        File fileTemp = new File(configurationManager.getFileToPersist() + "_disabled.temp"); //$NON-NLS-1$
        fos = new FileOutputStream(fileTemp);

        out = new ObjectOutputStream(fos);

        out.writeObject(jobQueue);
        out.close();

        File file = new File(configurationManager.getFileToPersist() + "_disabled");

        if (file.exists()) {
            file.delete();
        }

        fileTemp.renameTo(file);

    } catch (IOException ex) {
        ex.printStackTrace();
    }

    return true;

}

From source file:de.tudarmstadt.ukp.dkpro.core.io.bincas.SerializedCasWriter.java

@Override
public void process(JCas aJCas) throws AnalysisEngineProcessException {
    ObjectOutputStream docOS = null;
    try {//from  w  w w.  j  a v  a2  s .co m
        docOS = new ObjectOutputStream(getOutputStream(aJCas, filenameSuffix));

        if (typeSystemFile == null) {
            CASCompleteSerializer serializer = serializeCASComplete(aJCas.getCasImpl());
            docOS.writeObject(serializer);
        } else {
            CASSerializer serializer = new CASSerializer();
            serializer.addCAS(aJCas.getCasImpl());
            docOS.writeObject(serializer);
            if (!typeSystemWritten) {
                writeTypeSystem(aJCas);
                typeSystemWritten = true;
            }
        }
    } catch (Exception e) {
        throw new AnalysisEngineProcessException(e);
    } finally {
        closeQuietly(docOS);
    }
}

From source file:com.jpeterson.littles3.bo.AuthenticatedUsersGroupTest.java

/**
 * Test that an instance is serializable.
 *//*from  ww w. j av  a2 s. c o  m*/
public void test_serialization() {
    AuthenticatedUsersGroup group, reconstitutedGroup;
    ByteArrayInputStream bais;
    ByteArrayOutputStream baos;
    ObjectInputStream ois;
    ObjectOutputStream oos;

    group = AuthenticatedUsersGroup.getInstance();

    try {
        baos = new ByteArrayOutputStream();
        oos = new ObjectOutputStream(baos);

        oos.writeObject(group);

        bais = new ByteArrayInputStream(baos.toByteArray());
        ois = new ObjectInputStream(bais);

        reconstitutedGroup = (AuthenticatedUsersGroup) ois.readObject();

        assertEquals("Unexpected value", group, reconstitutedGroup);
    } catch (IOException e) {
        e.printStackTrace();
        fail("Unexpected exception");
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
        fail("Unexpected exception");
    }
}

From source file:com.ligadata.EncryptUtils.EncryptionUtil.java

/**
 * Generate key which contains a pair of private and public key using 1024
 * bytes. Store the set of keys in given files publicKeyFile,privateKeyFile
 * @param algorithm// w  ww  .  ja va2 s .  com
 *          : algorithm used
 * @param publicKeyFile
 *          :The file containing public key
 * @param privateKeyFile
 *          :The file containing private key
 */
public static void generateSampleKeys(String algorithm, String publicKeyFile, String privateKeyFile) {
    try {
        if (areKeysPresent(publicKeyFile, privateKeyFile)) {
            return;
        }
        final KeyPairGenerator keyGen = KeyPairGenerator.getInstance(algorithm);
        keyGen.initialize(1024);
        final KeyPair key = keyGen.generateKeyPair();

        File privateKeyFD = new File(privateKeyFile);
        File publicKeyFD = new File(publicKeyFile);

        // Create files to store public and private key
        if (privateKeyFD.getParentFile() != null) {
            privateKeyFD.getParentFile().mkdirs();
        }
        privateKeyFD.createNewFile();

        if (publicKeyFD.getParentFile() != null) {
            publicKeyFD.getParentFile().mkdirs();
        }
        publicKeyFD.createNewFile();

        // Saving the Public key in a file
        ObjectOutputStream publicKeyOS = new ObjectOutputStream(new FileOutputStream(publicKeyFD));
        publicKeyOS.writeObject(key.getPublic());
        publicKeyOS.close();

        // Saving the Private key in a file
        ObjectOutputStream privateKeyOS = new ObjectOutputStream(new FileOutputStream(privateKeyFD));
        privateKeyOS.writeObject(key.getPrivate());
        privateKeyOS.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:lirmm.inria.fr.math.TestUtils.java

/**
 * Serializes an object to a bytes array and then recovers the object from the bytes array.
 * Returns the deserialized object./*from w w w .  j  a  v a 2  s . com*/
 *
 * @param o  object to serialize and recover
 * @return  the recovered, deserialized object
 */
public static Object serializeAndRecover(Object o) {
    try {
        // serialize the Object
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ObjectOutputStream so = new ObjectOutputStream(bos);
        so.writeObject(o);

        // deserialize the Object
        ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
        ObjectInputStream si = new ObjectInputStream(bis);
        return si.readObject();
    } catch (IOException ioe) {
        return null;
    } catch (ClassNotFoundException cnfe) {
        return null;
    }
}