diff --git a/slack/pom.xml b/slack/pom.xml new file mode 100644 index 0000000000..ebe5ce2f60 --- /dev/null +++ b/slack/pom.xml @@ -0,0 +1,61 @@ + + + 4.0.0 + com.baeldung.examples + slack + 1.0 + slack + jar + + + com.baeldung + parent-modules + 1.0.0-SNAPSHOT + + + + + com.hubspot.slack + slack-base + ${slack.version} + + + com.hubspot.slack + slack-java-client + ${slack.version} + + + + + + + org.apache.maven.plugins + maven-jar-plugin + ${maven-jar-plugin.version} + + + + true + com.baeldung.examples.slack.MainClass + + + + + + org.codehaus.mojo + exec-maven-plugin + 1.6.0 + + com.baeldung.examples.slack.MainClass + + + + + + + 1.4 + 2.4 + + + diff --git a/slack/src/main/java/com/baeldung/examples/slack/DiskSpaceErrorChecker.java b/slack/src/main/java/com/baeldung/examples/slack/DiskSpaceErrorChecker.java new file mode 100644 index 0000000000..7a3f5cd607 --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/DiskSpaceErrorChecker.java @@ -0,0 +1,42 @@ +package com.baeldung.examples.slack; + +import java.io.IOException; +import java.nio.file.FileSystems; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class DiskSpaceErrorChecker implements ErrorChecker { + private static final Logger LOG = LoggerFactory.getLogger(DiskSpaceErrorChecker.class); + + private final ErrorReporter errorReporter; + + private final double limit; + + public DiskSpaceErrorChecker(ErrorReporter errorReporter, double limit) { + this.errorReporter = errorReporter; + this.limit = limit; + } + + @Override + public void check() { + LOG.info("Checking disk space"); + FileSystems.getDefault().getFileStores().forEach(fileStore -> { + try { + long totalSpace = fileStore.getTotalSpace(); + long usableSpace = fileStore.getUsableSpace(); + double usablePercentage = ((double) usableSpace) / totalSpace; + LOG.debug("File store {} has {} of {} ({}) usable space", + fileStore, usableSpace, totalSpace, usablePercentage); + + if (totalSpace > 0 && usablePercentage < limit) { + String error = String.format("File store %s only has %d%% usable disk space", + fileStore.name(), (int)(usablePercentage * 100)); + errorReporter.reportProblem(error); + } + } catch (IOException e) { + LOG.error("Error getting disk space for file store {}", fileStore, e); + } + }); + } +} diff --git a/slack/src/main/java/com/baeldung/examples/slack/ErrorChecker.java b/slack/src/main/java/com/baeldung/examples/slack/ErrorChecker.java new file mode 100644 index 0000000000..08db9a7817 --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/ErrorChecker.java @@ -0,0 +1,5 @@ +package com.baeldung.examples.slack; + +public interface ErrorChecker { + void check(); +} diff --git a/slack/src/main/java/com/baeldung/examples/slack/ErrorReporter.java b/slack/src/main/java/com/baeldung/examples/slack/ErrorReporter.java new file mode 100644 index 0000000000..ba6165af9b --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/ErrorReporter.java @@ -0,0 +1,5 @@ +package com.baeldung.examples.slack; + +public interface ErrorReporter { + void reportProblem(String problem); +} diff --git a/slack/src/main/java/com/baeldung/examples/slack/MainClass.java b/slack/src/main/java/com/baeldung/examples/slack/MainClass.java new file mode 100644 index 0000000000..ac25e97cf6 --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/MainClass.java @@ -0,0 +1,41 @@ +package com.baeldung.examples.slack; + +import java.io.IOException; +import java.util.Timer; +import java.util.TimerTask; + +import com.hubspot.slack.client.SlackClient; +import com.hubspot.slack.client.SlackClientFactory; +import com.hubspot.slack.client.SlackClientRuntimeConfig; + +public class MainClass { + public static final long MINUTES = 1000 * 60; + + public static void main(String[] args) throws IOException { + SlackClientRuntimeConfig runtimeConfig = SlackClientRuntimeConfig.builder() + .setTokenSupplier(() -> "") + .build(); + + SlackClient slackClient = SlackClientFactory.defaultFactory().build(runtimeConfig); + + ErrorReporter slackChannelErrorReporter = new SlackChannelErrorReporter(slackClient, "general"); + ErrorReporter slackUserErrorReporter = new SlackUserErrorReporter(slackClient, "testuser@baeldung.com"); + + ErrorChecker diskSpaceErrorChecker10pct = new DiskSpaceErrorChecker(slackChannelErrorReporter, 0.1); + ErrorChecker diskSpaceErrorChecker2pct = new DiskSpaceErrorChecker(slackUserErrorReporter, 0.02); + + Timer timer = new Timer(); + timer.scheduleAtFixedRate(new TimerTask() { + @Override + public void run() { + diskSpaceErrorChecker10pct.check(); + } + }, 0, 5 * MINUTES); + timer.scheduleAtFixedRate(new TimerTask() { + @Override + public void run() { + diskSpaceErrorChecker2pct.check(); + } + }, 0, 5 * MINUTES); + } +} diff --git a/slack/src/main/java/com/baeldung/examples/slack/SlackChannelErrorReporter.java b/slack/src/main/java/com/baeldung/examples/slack/SlackChannelErrorReporter.java new file mode 100644 index 0000000000..f7abcecc2e --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/SlackChannelErrorReporter.java @@ -0,0 +1,30 @@ +package com.baeldung.examples.slack; + +import com.hubspot.slack.client.SlackClient; +import com.hubspot.slack.client.methods.params.chat.ChatPostMessageParams; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class SlackChannelErrorReporter implements ErrorReporter { + private static final Logger LOG = LoggerFactory.getLogger(SlackChannelErrorReporter.class); + + private final SlackClient slackClient; + + private final String channel; + + public SlackChannelErrorReporter(SlackClient slackClient, String channel) { + this.slackClient = slackClient; + this.channel = channel; + } + + @Override + public void reportProblem(String problem) { + LOG.debug("Sending message to channel {}: {}", channel, problem); + slackClient.postMessage( + ChatPostMessageParams.builder() + .setText(problem) + .setChannelId(channel) + .build() + ).join().unwrapOrElseThrow(); + } +} diff --git a/slack/src/main/java/com/baeldung/examples/slack/SlackUserErrorReporter.java b/slack/src/main/java/com/baeldung/examples/slack/SlackUserErrorReporter.java new file mode 100644 index 0000000000..8fa4f9016b --- /dev/null +++ b/slack/src/main/java/com/baeldung/examples/slack/SlackUserErrorReporter.java @@ -0,0 +1,52 @@ +package com.baeldung.examples.slack; + +import java.util.List; + +import com.hubspot.slack.client.SlackClient; +import com.hubspot.slack.client.methods.params.chat.ChatPostMessageParams; +import com.hubspot.slack.client.methods.params.conversations.ConversationCreateParams; +import com.hubspot.slack.client.methods.params.im.ImOpenParams; +import com.hubspot.slack.client.methods.params.users.UserEmailParams; +import com.hubspot.slack.client.methods.params.users.UsersInfoParams; +import com.hubspot.slack.client.models.response.im.ImOpenResponse; +import com.hubspot.slack.client.models.response.users.UsersInfoResponse; +import com.hubspot.slack.client.models.users.SlackUser; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +public class SlackUserErrorReporter implements ErrorReporter { + private static final Logger LOG = LoggerFactory.getLogger(SlackUserErrorReporter.class); + + private final SlackClient slackClient; + + private final String user; + + public SlackUserErrorReporter(SlackClient slackClient, String user) { + this.slackClient = slackClient; + this.user = user; + } + + @Override + public void reportProblem(String problem) { + LOG.debug("Sending message to user {}: {}", user, problem); + UsersInfoResponse usersInfoResponse = slackClient + .lookupUserByEmail(UserEmailParams.builder() + .setEmail(user) + .build() + ).join().unwrapOrElseThrow(); + + ImOpenResponse imOpenResponse = slackClient.openIm(ImOpenParams.builder() + .setUserId(usersInfoResponse.getUser().getId()) + .build() + ).join().unwrapOrElseThrow(); + + imOpenResponse.getChannel().ifPresent(channel -> { + slackClient.postMessage( + ChatPostMessageParams.builder() + .setText(problem) + .setChannelId(channel.getId()) + .build() + ).join().unwrapOrElseThrow(); + }); + } +} diff --git a/slack/src/main/resources/logback.xml b/slack/src/main/resources/logback.xml new file mode 100644 index 0000000000..c8c077ba1d --- /dev/null +++ b/slack/src/main/resources/logback.xml @@ -0,0 +1,13 @@ + + + + + %d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n + + + + + + + + \ No newline at end of file