de.is24.deadcode4j.plugin.UsageStatisticsManager Maven / Gradle / Ivy
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Finds unused classes of a project
package de.is24.deadcode4j.plugin;
import org.apache.commons.io.IOUtils;
import org.apache.maven.plugin.LegacySupport;
import org.apache.maven.shared.runtime.MavenProjectProperties;
import org.apache.maven.shared.runtime.MavenRuntime;
import org.apache.maven.shared.runtime.MavenRuntimeException;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.component.annotations.Requirement;
import org.codehaus.plexus.components.interactivity.Prompter;
import org.codehaus.plexus.components.interactivity.PrompterException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.*;
import static com.google.common.collect.Maps.newHashMap;
import static com.google.common.collect.Maps.newHashMapWithExpectedSize;
import static de.is24.deadcode4j.Utils.nullIfEmpty;
import static java.util.Arrays.asList;
/**
* Sends usage statistics (via Google Forms).
*
* @since 2.0.0
*/
@Component(role = UsageStatisticsManager.class)
public class UsageStatisticsManager {
@Requirement
private LegacySupport legacySupport;
@Requirement
private MavenRuntime mavenRuntime;
@Requirement
private Prompter prompter;
/**
* This is around for testing.
*
* @since 2.0.0
*/
protected HttpURLConnection openUrlConnection() throws IOException {
URL url = new URL("https://docs.google.com/forms/d/1-XZeeAyHrucUMREQLHZEnZ5mhywYZi5Dk9nfEv7U2GU/formResponse");
return HttpURLConnection.class.cast(url.openConnection());
}
public void sendUsageStatistics(DeadCodeStatistics deadCodeStatistics) {
final Logger logger = getLogger();
if (Boolean.TRUE.equals(deadCodeStatistics.getSkipSendingUsageStatistics())) {
logger.debug("Configuration wants to me to skip sending usage statistics.");
return;
}
if (legacySupport.getSession().isOffline()) {
logger.info("Running in offline mode; skipping sending of usage statistics.");
return;
}
SystemProperties systemProperties = SystemProperties.from(legacySupport, mavenRuntime);
if (Boolean.FALSE.equals(deadCodeStatistics.getSkipSendingUsageStatistics())) {
logger.debug("Configured to send usage statistics.");
} else {
if (!legacySupport.getSession().getRequest().isInteractiveMode()) {
logger.info("Running in non-interactive mode; skipping sending of usage statistics.");
return;
}
if (!askForPermissionAndComment(deadCodeStatistics, systemProperties)) {
return;
}
}
Map parameters = getParameters(deadCodeStatistics, systemProperties);
sendUsageStatistics(parameters);
}
private Logger getLogger() {
return LoggerFactory.getLogger(getClass());
}
private void sendUsageStatistics(Map parameters) {
final Logger logger = getLogger();
HttpURLConnection urlConnection = null;
try {
urlConnection = openUrlConnection();
urlConnection.setAllowUserInteraction(false);
urlConnection.setConnectTimeout(2000);
urlConnection.setDoInput(true);
urlConnection.setDoOutput(true);
urlConnection.setInstanceFollowRedirects(false);
urlConnection.setReadTimeout(5000);
urlConnection.setRequestProperty("content-type", "application/x-www-form-urlencoded");
urlConnection.connect();
writeParameters(parameters, urlConnection);
processResponse(urlConnection);
} catch (IOException e) {
logger.debug("Failed to send statistics!", e);
logger.info("Failed sending usage statistics.");
} finally {
IOUtils.close(urlConnection);
}
}
private void processResponse(HttpURLConnection urlConnection) throws IOException {
final Logger logger = getLogger();
int responseCode = urlConnection.getResponseCode();
if (responseCode / 100 == 2) {
logger.info("Usage statistics have been transferred.");
return;
}
logger.info("Could not transfer usage statistics: {}/{}", responseCode, urlConnection.getResponseMessage());
if (logger.isDebugEnabled()) {
InputStream inputStream = urlConnection.getInputStream();
try {
List response = IOUtils.readLines(inputStream);
for (String line : response) {
logger.debug(line);
}
} finally {
IOUtils.closeQuietly(inputStream);
}
}
}
private void writeParameters(Map parameters, HttpURLConnection urlConnection) throws IOException {
StringBuilder buffy = new StringBuilder();
for (Map.Entry entry : parameters.entrySet()) {
buffy.append(entry.getKey()).append('=').append(URLEncoder.encode(entry.getValue(), "UTF-8")).append('&');
}
OutputStream outputStream = urlConnection.getOutputStream();
try {
outputStream.write(buffy.toString().getBytes("UTF-8"));
} finally {
IOUtils.closeQuietly(outputStream);
}
}
private Map getParameters(DeadCodeStatistics deadCodeStatistics,
SystemProperties systemProperties) {
HashMap parameters = newHashMap();
deadCodeStatistics.addRequestParameters(parameters);
systemProperties.addRequestParameters(parameters);
return parameters;
}
/**
* @return {@code null} if sending statistics should be aborted
*/
private boolean askForPermissionAndComment(DeadCodeStatistics deadCodeStatistics, SystemProperties systemProperties) {
final Logger logger = getLogger();
StringBuilder buffy = listStatistics(deadCodeStatistics, systemProperties);
try {
buffy.append("\nMay I report those usage statistics (via HTTPS)?");
String answer = prompter.prompt(buffy.toString(), asList("Y", "N"), "Y");
if ("N".equals(answer)) {
logger.info("Sending usage statistics is aborted.");
logger.info("You may configure deadcode4j to permanently disable sending usage statistics.");
return false;
}
if (deadCodeStatistics.getUsageStatisticsComment() == null) {
deadCodeStatistics.setUsageStatisticsComment(prompter.prompt(
"Awesome! Would you like to state a testimonial or give a comment? Here you can"));
}
return true;
} catch (PrompterException e) {
logger.debug("Prompter failed!", e);
logger.info("Failed to interact with the user!");
return false;
}
}
private StringBuilder listStatistics(DeadCodeStatistics deadCodeStatistics, SystemProperties systemProperties) {
StringBuilder buffy = new StringBuilder("I gathered the following system properties:");
for (String key : new TreeSet(SystemProperties.KEYS.keySet())) {
buffy.append("\n ").append(key).append(": ").append(systemProperties.values.get(key));
}
buffy.append("\nextracted this from your configuration: ");
if (deadCodeStatistics.getUsageStatisticsComment() != null) {
buffy.append("\n your comment to deadcode4j: ").
append(deadCodeStatistics.getUsageStatisticsComment());
}
buffy.append("\n value for ignoreMainClasses: ").
append(deadCodeStatistics.config_ignoreMainClasses);
buffy.append("\n value for skipUpdateCheck: ").
append(deadCodeStatistics.config_skipUpdateCheck);
buffy.append("\n number of classes to ignore: ").
append(deadCodeStatistics.config_numberOfClassesToIgnore);
buffy.append("\n number of custom annotations: ").
append(deadCodeStatistics.config_numberOfCustomAnnotations);
buffy.append("\n number of custom interfaces: ").
append(deadCodeStatistics.config_numberOfCustomInterfaces);
buffy.append("\n number of custom superclasses: ").
append(deadCodeStatistics.config_numberOfCustomSuperclasses);
buffy.append("\n number of custom XML definitions: ").
append(deadCodeStatistics.config_numberOfCustomXmlDefinitions);
buffy.append("\n number of modules to skip: ").
append(deadCodeStatistics.config_numberOfModulesToSkip);
buffy.append("\nand gathered those results: ");
buffy.append("\n analyzed classes: ").append(deadCodeStatistics.numberOfAnalyzedClasses);
buffy.append("\n analyzed modules: ").append(deadCodeStatistics.numberOfAnalyzedModules);
buffy.append("\n found dead classes: ").append(deadCodeStatistics.numberOfDeadClassesFound);
return buffy;
}
public static class DeadCodeStatistics {
private final Boolean skipSendingUsageStatistics;
private String usageStatisticsComment;
public int numberOfAnalyzedClasses;
public int numberOfAnalyzedModules;
public int numberOfDeadClassesFound;
public boolean config_ignoreMainClasses;
public int config_numberOfClassesToIgnore;
public int config_numberOfCustomAnnotations;
public int config_numberOfCustomInterfaces;
public int config_numberOfCustomSuperclasses;
public int config_numberOfCustomXmlDefinitions;
public int config_numberOfModulesToSkip;
public boolean config_skipUpdateCheck;
/**
* Creates a new instance of {@code DeadCodeStatistics}.
*
* @param skipSendingUsageStatistics the configuration value indicating if statistics should be sent or not
* @param usageStatisticsComment the configured comment
*/
public DeadCodeStatistics(Boolean skipSendingUsageStatistics, String usageStatisticsComment) {
this.skipSendingUsageStatistics = skipSendingUsageStatistics;
setUsageStatisticsComment(usageStatisticsComment);
}
public Boolean getSkipSendingUsageStatistics() {
return skipSendingUsageStatistics;
}
public String getUsageStatisticsComment() {
return usageStatisticsComment;
}
public void setUsageStatisticsComment(String usageStatisticsComment) {
this.usageStatisticsComment = nullIfEmpty(usageStatisticsComment);
}
public void addRequestParameters(HashMap parameters) {
parameters.put("entry.1074756797", String.valueOf(numberOfAnalyzedClasses));
parameters.put("entry.1318897553", String.valueOf(numberOfAnalyzedModules));
parameters.put("entry.582394579", String.valueOf(numberOfDeadClassesFound));
parameters.put("entry.2113716156", String.valueOf(config_ignoreMainClasses));
parameters.put("entry.1255607340", String.valueOf(config_numberOfClassesToIgnore));
parameters.put("entry.837156809", String.valueOf(config_numberOfCustomAnnotations));
parameters.put("entry.1900438860", String.valueOf(config_numberOfCustomInterfaces));
parameters.put("entry.2138491452", String.valueOf(config_numberOfCustomSuperclasses));
parameters.put("entry.1308824804", String.valueOf(config_numberOfCustomXmlDefinitions));
parameters.put("entry.1094908901", String.valueOf(config_numberOfModulesToSkip));
parameters.put("entry.1760639029", String.valueOf(config_skipUpdateCheck));
if (this.skipSendingUsageStatistics != null) {
parameters.put("entry.1975817511", String.valueOf(skipSendingUsageStatistics));
}
if (this.usageStatisticsComment != null) {
parameters.put("entry.2135548690", this.usageStatisticsComment);
}
}
}
public static class SystemProperties {
public static final Map KEYS;
static {
Map keys = newHashMap();
keys.put("deadcode4j.version", "entry.1472283741");
keys.put("java.class.version", "entry.1951632658");
keys.put("java.runtime.name", "entry.890615248");
keys.put("java.runtime.version", "entry.120214478");
keys.put("java.specification.version", "entry.1933178438");
keys.put("java.version", "entry.344342021");
keys.put("java.vm.specification.version", "entry.1718484204");
keys.put("maven.build.version", "entry.1702626216");
keys.put("maven.version", "entry.131773189");
keys.put("os.name", "entry.1484769972");
keys.put("os.version", "entry.1546424580");
keys.put("user.country", "entry.1667669021");
keys.put("user.language", "entry.1213472042");
KEYS = Collections.unmodifiableMap(keys);
}
private final Map values = newHashMapWithExpectedSize(KEYS.size());
private SystemProperties() {
values.put("deadcode4j.version", "2.0.0");
}
public static SystemProperties from(LegacySupport legacySupport, MavenRuntime mavenRuntime) {
SystemProperties systemProperties = new SystemProperties();
try {
MavenProjectProperties projectProperties = mavenRuntime.getProjectProperties(SystemProperties.class);
systemProperties.values.put("deadcode4j.version", projectProperties.getVersion());
} catch (MavenRuntimeException e) {
LoggerFactory.getLogger(SystemProperties.class).debug("Failed to determine MavenRuntime.", e);
}
Properties properties = legacySupport.getSession().getRequest().getSystemProperties();
for (String key : KEYS.keySet()) {
String property = nullIfEmpty(properties.getProperty(key));
if (property != null) {
systemProperties.values.put(key, property);
}
}
return systemProperties;
}
public void addRequestParameters(HashMap parameters) {
for (Map.Entry entry : values.entrySet()) {
parameters.put(KEYS.get(entry.getKey()), entry.getValue());
}
}
}
}
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