Sajith's Blogspot

09 April 2017

Android Client Benchmark AsyncTask & Retrofit & OkHttp

Hi guys , After long time. Last couple of months I worked in android development so I thought share something i have discovered . This is a open thread so if you have any other opinions you can post here. What I am going to do is comparison between android client libraries. Here I am going to do some benchmark on

The main thing is developers wonder which library is fit for their android application. Here I will post the code examples and results. And one more thing here I am not taking volley because it is old library now.If you need to access code this is the url [https://github.com/sajith4u/android-client-benchmark ]. Feel free to commit your changes.

Code Samples

Retrofit

public interface RetrofitClient {

    @GET("benchmark/")
    Call<Example> getBenchmarkResults();
}

package app.innova.dev.cleintbenchmark.beans;


import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class Example {

    @SerializedName("text")
    @Expose
    private String text;
    @SerializedName("to_user_id")
    @Expose
    private int toUserId;
    @SerializedName("to_user")
    @Expose
    private String toUser;
    @SerializedName("from_user")
    @Expose
    private String fromUser;
    @SerializedName("result_type")
    @Expose
    private String resultType;
    @SerializedName("recent_retweets")
    @Expose
    private int recentRetweets;
    @SerializedName("id")
    @Expose
    private int id;
    @SerializedName("from_user_id")
    @Expose
    private int fromUserId;
    @SerializedName("iso_language_code")
    @Expose
    private String isoLanguageCode;
    @SerializedName("source")
    @Expose
    private String source;
    @SerializedName("profile_image_url")
    @Expose
    private String profileImageUrl;
    @SerializedName("created_at")
    @Expose
    private String createdAt;
    @SerializedName("since_id")
    @Expose
    private int sinceId;
    @SerializedName("max_id")
    @Expose
    private int maxId;
    @SerializedName("refresh_url")
    @Expose
    private String refreshUrl;
    @SerializedName("results_per_page")
    @Expose
    private int resultsPerPage;
    @SerializedName("next_page")
    @Expose
    private String nextPage;
    @SerializedName("completed_in")
    @Expose
    private float completedIn;
    @SerializedName("page")
    @Expose
    private int page;
    @SerializedName("query")
    @Expose
    private String query;

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

    public int getToUserId() {
        return toUserId;
    }

    public void setToUserId(int toUserId) {
        this.toUserId = toUserId;
    }

    public String getToUser() {
        return toUser;
    }

    public void setToUser(String toUser) {
        this.toUser = toUser;
    }

    public String getFromUser() {
        return fromUser;
    }

    public void setFromUser(String fromUser) {
        this.fromUser = fromUser;
    }

    public String getResultType() {
        return resultType;
    }

    public void setResultType(String resultType) {
        this.resultType = resultType;
    }

    public int getRecentRetweets() {
        return recentRetweets;
    }

    public void setRecentRetweets(int recentRetweets) {
        this.recentRetweets = recentRetweets;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getFromUserId() {
        return fromUserId;
    }

    public void setFromUserId(int fromUserId) {
        this.fromUserId = fromUserId;
    }

    public String getIsoLanguageCode() {
        return isoLanguageCode;
    }

    public void setIsoLanguageCode(String isoLanguageCode) {
        this.isoLanguageCode = isoLanguageCode;
    }

    public String getSource() {
        return source;
    }

    public void setSource(String source) {
        this.source = source;
    }

    public String getProfileImageUrl() {
        return profileImageUrl;
    }

    public void setProfileImageUrl(String profileImageUrl) {
        this.profileImageUrl = profileImageUrl;
    }

    public String getCreatedAt() {
        return createdAt;
    }

    public void setCreatedAt(String createdAt) {
        this.createdAt = createdAt;
    }

    public int getSinceId() {
        return sinceId;
    }

    public void setSinceId(int sinceId) {
        this.sinceId = sinceId;
    }

    public int getMaxId() {
        return maxId;
    }

    public void setMaxId(int maxId) {
        this.maxId = maxId;
    }

    public String getRefreshUrl() {
        return refreshUrl;
    }

    public void setRefreshUrl(String refreshUrl) {
        this.refreshUrl = refreshUrl;
    }

    public int getResultsPerPage() {
        return resultsPerPage;
    }

    public void setResultsPerPage(int resultsPerPage) {
        this.resultsPerPage = resultsPerPage;
    }

    public String getNextPage() {
        return nextPage;
    }

    public void setNextPage(String nextPage) {
        this.nextPage = nextPage;
    }

    public float getCompletedIn() {
        return completedIn;
    }

    public void setCompletedIn(float completedIn) {
        this.completedIn = completedIn;
    }

    public int getPage() {
        return page;
    }

    public void setPage(int page) {
        this.page = page;
    }

    public String getQuery() {
        return query;
    }

    public void setQuery(String query) {
        this.query = query;
    }

    @Override
    public String toString() {
        return "Example{" +
                "text='" + text + '\'' +
                ", toUserId=" + toUserId +
                ", toUser='" + toUser + '\'' +
                ", fromUser='" + fromUser + '\'' +
                ", resultType='" + resultType + '\'' +
                ", recentRetweets=" + recentRetweets +
                ", id=" + id +
                ", fromUserId=" + fromUserId +
                ", isoLanguageCode='" + isoLanguageCode + '\'' +
                ", source='" + source + '\'' +
                ", profileImageUrl='" + profileImageUrl + '\'' +
                ", createdAt='" + createdAt + '\'' +
                ", sinceId=" + sinceId +
                ", maxId=" + maxId +
                ", refreshUrl='" + refreshUrl + '\'' +
                ", resultsPerPage=" + resultsPerPage +
                ", nextPage='" + nextPage + '\'' +
                ", completedIn=" + completedIn +
                ", page=" + page +
                ", query='" + query + '\'' +
                '}';
    }
}

final RetrofitClient apiService =
                RestClient.getClient().create(RetrofitClient.class);
        retrofit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String format = sdf.format(new Date());
                Log.d(TAG, "Date : " + format);
                Call<Example> call = apiService.getBenchmarkResults();
                call.enqueue(new Callback<Example>() {
                    @Override
                    public void onResponse(Call<Example> call, Response<Example> response) {
                        Log.d(TAG, String.valueOf(response.code()));
                        Example movies = response.body();
                        if (movies != null) {
                            String format = sdf.format(new Date());
                            Log.d(TAG, "Date : " + format);
                            System.out.println("Data :" + movies.toString());
                            Log.d(TAG, "Data :" + movies.toString());
                        }

                    }

                    @Override
                    public void onFailure(Call<Example> call, Throwable t) {
                        Log.e(TAG, t.toString());
                    }
                });
            }
        });

Android AsyncTask

public class AsyncClient {

    private String MOCK_URL = "http://demo7836701.mockable.io/benchmark";

    private static String GET = "GET";

    private static int CONNECTION_TIMEOUT = 75000;

    private static int READ_TIMEOUT = 60000;

    public Object getObject(Class successClass) throws Exception {
        Object getResponse;
        StringBuilder responseString = new StringBuilder();
        String fullUrl = (MOCK_URL).replace(" ", "%20");
        URL requestUrl = new URL(fullUrl);
        HttpURLConnection conn = getConnection(GET, requestUrl);
        conn.connect();
        InputStream connectionInputStream = getConnectionInputStream(conn);
        BufferedReader reader = new BufferedReader(new InputStreamReader(connectionInputStream));
        String line;
        while ((line = reader.readLine()) != null) {
            responseString.append(line);
        }
        Log.d("GET Response >>", responseString.toString());
        if (conn.getResponseCode() >= 200 && conn.getResponseCode() <= 299) {
            getResponse = new Gson().fromJson(responseString.toString(), successClass);
        } else {
            getResponse = new Gson().fromJson(responseString.toString(), String.class);
        }
        conn.disconnect();
        return getResponse;
    }

    private HttpURLConnection getConnection(String type, URL requestUrl) throws Exception {
        HttpURLConnection conn = (HttpURLConnection) requestUrl.openConnection();
        conn.setDoOutput(false);
        conn.setRequestMethod(type);
        conn.setReadTimeout(READ_TIMEOUT);
        conn.setConnectTimeout(CONNECTION_TIMEOUT);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestProperty("Accept-Encoding", "gzip,deflate");
        conn.setRequestProperty("accept", "application/json");
        return conn;
    }

    private InputStream getConnectionInputStream(HttpURLConnection httpURLConnection) throws Exception {
        InputStream in;
        if (httpURLConnection.getResponseCode() >= 200 && httpURLConnection.getResponseCode() <= 299) {
            in = new BufferedInputStream(httpURLConnection.getInputStream());
        } else {
            in = new BufferedInputStream(httpURLConnection.getErrorStream());
        }
        return in;
    }
}

Benchmark Results

This is first step to do the benchmark. Before doing this benchmark There are assumptions I have made.First one is both scenarios same internet connection in the device.

To Complete One Request

Retrofit 2017-04-09 04:38:22.285 2017-04-09 04:38:22.731 [ 446 mili seconds]

Android 2017-04-09 04:39:19.321 2017-04-09 04:39:19.648 [ 321 mili seconds ]

04 February 2017

Spring Security with Google SignIn

It is long time again. This time I think write some article about Spring security with Google Signing .Last week I have worked project which need to integrate spring security with google sign in. So I think this would help developers who using spring security. This diagram shows the use case I am going to resolve.

First step is to Add Google login button to web site. For that this documentation shows how to add google login button to website. If you follow up this steps you can add this kind of button to your website.

After you sign-in using gmail account it will return google auth token to browser.

In your sign.jsp page you need to add web form with hidden token field.

<form id="custom_form"
                  action="<c:url value='j_spring_security_check' />" method='POST'>
                <input id="formToken" type='hidden' name='token'/>
 </form>

Next spring-security.xml should be configured this way.

<sec:http auto-config="true" use-expressions="true">
        <sec:intercept-url pattern="/login" access="isAnonymous()" />
        <sec:intercept-url pattern="/logout" access="isAnonymous()" />
        <sec:intercept-url pattern="/access_denied" access="isAnonymous()" />
        <sec:intercept-url pattern="/*" access="hasRole('ROLE_ADMIN')" />

        <sec:form-login login-page="/login" authentication-failure-url="/access_denied"
                        password-parameter="token"
                        default-target-url="/home"/>

        <sec:logout logout-success-url="/logout"/>

</sec:http>

<sec:authentication-manager alias="authenticationManager">
        <sec:authentication-provider ref="authenticationProvider">
        </sec:authentication-provider>
</sec:authentication-manager>


<bean class="dev.innova.util.CustomAuthenticationProvider" id="authenticationProvider"/>

Then the last part is create custom Authentication Provider to validate user google auth token.

import com.google.api.client.googleapis.auth.oauth2.GoogleIdToken;
import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import dev.innova.util.UserAccount;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;

import java.io.IOException;
import java.security.GeneralSecurityException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;


public class CustomAuthenticationProvider implements AuthenticationProvider {

    @Value("${client.id}")
    private String CLIENT_ID;

    private static final Logger logger = LogManager.getLogger(CustomAuthenticationProvider.class.getName());

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {

        String token = (String) authentication.getCredentials();
        NetHttpTransport transport = new NetHttpTransport();
        JsonFactory mJFactory = new GsonFactory();
        boolean validUser = false;
        GoogleIdTokenVerifier verifier = new GoogleIdTokenVerifier.Builder(transport, mJFactory)
                .setAudience(Collections.singletonList(CLIENT_ID))
                .build();

        UserAccount userAccount = new UserAccount();
        try {
            GoogleIdToken idToken = verifier.verify(token);
            if (idToken != null) {
                GoogleIdToken.Payload payload = idToken.getPayload();
                String email = payload.getEmail();
                String pictureUrl = (String) payload.get("picture");
                String userId = payload.getSubject();
                boolean emailVerified = Boolean.valueOf(payload.getEmailVerified());
                String name = (String) payload.get("name");
                userAccount.setEmailAddress(email);
                userAccount.setImageUrl(pictureUrl);
                validUser = isValidUser(email);
                logger.info("User Details Name [{}]",name);
                logger.info("User Details userId [{}]",userId);
                logger.info("User Details emailVerified [{}]",emailVerified);
                logger.info("User Details Image [{}]",pictureUrl);
            } else {
                logger.info("Invalid ID token.");
            }
        }catch (IllegalArgumentException exx){
            logger.error("Failed {}", exx.getMessage());
        }catch (GeneralSecurityException e) {
            logger.error("Failed {}", e.getMessage());
        } catch (IOException e) {
            logger.error("Failed {}", e.getMessage());
        }
        if (validUser) {
            logger.info("Valid User Found");
            List<GrantedAuthority> grantedAuths = new ArrayList<>();
            grantedAuths.add(new SimpleGrantedAuthority("ROLE_ADMIN"));
            Authentication auth = new UsernamePasswordAuthenticationToken(userAccount, token, grantedAuths);
            return auth;
        } else {
            throw new BadCredentialsException("Username not found.");
        }
    }

    @Override
    public boolean supports(Class<?> authentication) {
        boolean equals = authentication.equals(UsernamePasswordAuthenticationToken.class);
        return equals;
    }

    /**
     *  Mock Method to validate Email
     * @param email
     * @return
     */
    private boolean isValidUser(String email){
        return true;
    }

}

Then we can create Custom UserDetails to save custom data. Which will help you to save user image, extra details.

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;

public class UserAccount implements UserDetails {

    private String userId;

    private String userName;

    private String emailAddress;

    private String imageUrl;

    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getEmailAddress() {
        return emailAddress;
    }

    public void setEmailAddress(String emailAddress) {
        this.emailAddress = emailAddress;
    }

    public String getImageUrl() {
        return imageUrl;
    }

    public void setImageUrl(String imageUrl) {
        this.imageUrl = imageUrl;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return null;
    }

    @Override
    public String getPassword() {
        return null;
    }

    @Override
    public String getUsername() {
        return userName;
    }

    @Override
    public boolean isAccountNonExpired() {
        return false;
    }

    @Override
    public boolean isAccountNonLocked() {
        return false;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return false;
    }

    @Override
    public boolean isEnabled() {
        return false;
    }
}

And that is it.You can login user with google account and use spring security to secure.

06 November 2016

Easy Way to Create wrapper for Java Project

Most of the articles I have written for android related development issues. I thought need to write something new for java and spring related article.when I was in university when we running project what wed did was always run the project using IDE. But after joining to industry we know that we have to write executable file to run project in different environments. Let's say customer server may be windows, linux or mac .Then we have to create executable file which run in all platforms. If the project is simple what we can do is create executable jar and give to customer.

But if the project contents configuration files this approach is not good. Then we have to use better way to bundle executable files. So in this tutorial I will show you to how to create wrapper for java project but make sure you have to use maven.

First you have to add following property to pom.xml

1
2
3

<properties>
    <wrapper.location>${project.build.directory}/generated-resources/appassembler/jsw/#wrapper-name</wrapper.location>
</properties>

Then need to add following plugins to pom.xml and make sure change the main class and wrapper name.

<build>
<plugins>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <executions>
            <execution>
                <id>copy-resources</id>
                <phase>process-classes</phase>
                <goals>
                    <goal>copy-resources</goal>
                </goals>
                <configuration>
                    <outputDirectory>${project.build.directory}/conf</outputDirectory>
                    <resources>
                        <resource>
                            <directory>${project.basedir}/src/main/resources</directory>
                        </resource>
                    </resources>
                </configuration>
            </execution>
        </executions>
    </plugin>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <configuration>
            <excludes>
                <exclude>**/*.yml</exclude>
                <exclude>**/*.txt</exclude>
            </excludes>
        </configuration>
    </plugin>
    <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>appassembler-maven-plugin</artifactId>
        <version>1.10</version>
        <executions>
            <execution>
                <id>generate-jsw-scripts</id>
                <phase>package</phase>
                <goals>
                    <goal>generate-daemons</goal>
                </goals>
                <configuration>
                    <repositoryLayout>flat</repositoryLayout>
                    <configurationDirectory>conf</configurationDirectory>
                    <daemons>
                        <daemon>
                            <id>#wrapper-name</id>
                            <wrapperMainClass>org.tanukisoftware.wrapper.WrapperSimpleApp</wrapperMainClass>
                            <mainClass>#Main-class</mainClass>
                            <commandLineArguments>
                                <commandLineArgument>start</commandLineArgument>
                            </commandLineArguments>
                            <platforms>
                                <platform>jsw</platform>
                            </platforms>
                            <generatorConfigurations>
                                <generatorConfiguration>
                                    <generator>jsw</generator>
                                    <configuration>
                                        <property>
                                            <name>wrapper.java.additional.1</name>
                                            <value>-Xloggc:logs/gclog</value>
                                        </property>
                                        <property>
                                            <name>wrapper.java.additional.2</name>
                                            <value>-XX:MaxDirectMemorySize=256M</value>
                                        </property>
                                        <property>
                                            <name>configuration.directory.in.classpath.first</name>
                                            <value>conf</value>
                                        </property>
                                        <property>
                                            <name>set.default.REPO_DIR</name>
                                            <value>lib</value>
                                        </property>
                                        <property>
                                            <name>wrapper.logfile</name>
                                            <value>logs/wrapper.log</value>
                                        </property>
                                    </configuration>
                                    <includes>
                                        <include>linux-x86-32</include>
                                        <include>linux-x86-64</include>
                                    </includes>
                                </generatorConfiguration>
                            </generatorConfigurations>
                        </daemon>
                    </daemons>
                </configuration>
            </execution>
        </executions>
    </plugin>
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.6</version>
        <executions>
            <execution>
                <id>make-log-dir</id>
                <phase>package</phase>
                <configuration>
                    <tasks>
                        <mkdir dir="${wrapper.location}/logs" />
                        <copy todir="${wrapper.location}/conf">
                            <fileset dir="target/conf" />
                        </copy>
                        <chmod dir="${wrapper.location}/bin" includes="**/*" perm="0755" />
                    </tasks>
                </configuration>
                <goals>
                    <goal>run</goal>
                </goals>
            </execution>
        </executions>
    </plugin>
    <plugin>
        <artifactId>maven-assembly-plugin</artifactId>
        <version>2.5.3</version>
        <configuration>
            <descriptor>src/assembly/dep.xml</descriptor>
            <finalName>#app-name</finalName>
        </configuration>
        <executions>
            <execution>
                <id>create-archive</id>
                <phase>package</phase>
                <goals>
                    <goal>single</goal>
                </goals>
            </execution>
        </executions>
    </plugin>
</plugins>
</build>

And final Step is need to add assembly file to your project. Create assembly folder inside src folder and put the following dep.xml file in to it.

<assembly xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2"          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"          xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.2 http://maven.apache.org/xsd/assembly-1.1.2.xsd">
<id>bin</id>
<formats>
    <format>zip</format>
</formats>
<fileSets>
    <fileSet>
        <directory>${wrapper.location}</directory>
        <outputDirectory>/</outputDirectory>
    </fileSet>
</fileSets>
</assembly>

And now you can see the wrapper-name.zip file in target folder. after extracting it inside the bin folder four executable files are there and bat file for windows and wrapper for linux . All the dependency jar files are under lib folder. and configurations in conf folder. Now in this way we can easily handle projects. Hope now you will learn something from my tutorial.

Android Dynamically Change Style colors

In this Tutorial I will discuss How to Change Android Style theme colors. Last few days I had to I have searched how to change android theme style color dynamically but android doesn't support to change theme colors dynamically. (Note :You can changed android pre-defined theme styles dynamically not the dynamic generated themes)

If we using Theme.AppCompat.Light.DarkActionBar then these are the main properties in layout.

If You want to change theme what you did was change the primary color and primaryDark color. And this code helps you to dynamically change the theme (above mention colors) colors.

This is for change primary Dark color.

public static void setStatusBarColor(String color) {

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        Window window = currentActivity.getWindow();
        int statusBarColor = Color.parseColor(color);

        if (statusBarColor == Color.BLACK && window.getNavigationBarColor() == Color.BLACK) {
            window.clearFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        } else {
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
        }
        window.setStatusBarColor(statusBarColor);
    }
}

This is for change primary color

1 2	getSupportActionBar().setBackgroundDrawable( new ColorDrawable(Color.parseColor("#AA3939")));



I hope this article help you to resolve your problem.
Thanks

Pages