feat: allow message limits (#82)

build.gradle

@@ -53,6 +53,7 @@ dependencies {
 }
 
 test {
+    // Discover and execute all other JUnit5-based tests
     useJUnitPlatform()
     afterSuite { desc, result ->
         if (!desc.parent)
@@ -64,6 +65,15 @@ test {
     }
 }
 
+tasks.register('platformTests', Test) {
+    // Discover and execute JUnit4-based EventCountsTest
+    useJUnit()
+    description = 'Runs the platform tests.'
+    group = 'verification'
+    outputs.upToDateWhen { false }
+    mustRunAfter test
+}
+
 configurations {
     implementation {
         exclude group: 'org.slf4j', module: 'slf4j-api'

gradle.properties

@@ -1,7 +1,7 @@
-ideaVersion = IC-2020.3
+ideaVersion = IC-2022.1
 # build number ranges
 # https://www.jetbrains.org/intellij/sdk/docs/basics/getting_started/build_number_ranges.html
-sinceIdeaBuild=203
+sinceIdeaBuild=211
 projectVersion=1.2.0-SNAPSHOT
 intellijPluginVersion=1.16.1
 jetBrainsToken=invalid

src/main/java/com/redhat/devtools/intellij/telemetry/core/configuration/ClasspathConfiguration.java

@@ -10,7 +10,6 @@
  ******************************************************************************/
 package com.redhat.devtools.intellij.telemetry.core.configuration;
 
-import java.io.FileNotFoundException;
 import java.io.InputStream;
 import java.nio.file.Path;
 
@@ -28,7 +27,7 @@ public ClasspathConfiguration(Path file, ClassLoader classLoader) {
 	}
 
 	@Override
-	protected InputStream createInputStream(Path path) throws FileNotFoundException {
+	protected InputStream createInputStream(Path path) {
 		if (path == null) {
 			return null;
 		}

src/main/java/com/redhat/devtools/intellij/telemetry/core/configuration/CompositeConfiguration.java

@@ -10,11 +10,14 @@
  ******************************************************************************/
 package com.redhat.devtools.intellij.telemetry.core.configuration;
 
+import org.jetbrains.annotations.Nullable;
+
 import java.util.List;
 import java.util.Objects;
 
 public abstract class CompositeConfiguration implements IConfiguration {
 
+    @Nullable
     @Override
     public String get(final String key) {
         List<IConfiguration> configurations = getConfigurations();

src/main/java/com/redhat/devtools/intellij/telemetry/core/configuration/TelemetryConfiguration.java

@@ -25,7 +25,7 @@ public class TelemetryConfiguration extends CompositeConfiguration {
     private static final SaveableFileConfiguration FILE = new SaveableFileConfiguration(
             Directories.RED_HAT.resolve("com.redhat.devtools.intellij.telemetry"));
 
-    private static TelemetryConfiguration INSTANCE = new TelemetryConfiguration();
+    private static final TelemetryConfiguration INSTANCE = new TelemetryConfiguration();
 
     public static TelemetryConfiguration getInstance() {
         return INSTANCE;

src/main/java/com/redhat/devtools/intellij/telemetry/core/configuration/limits/Enabled.java

@@ -0,0 +1,42 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.telemetry.core.configuration.limits;
+
+import com.intellij.openapi.util.text.StringUtil;
+
+import java.util.Arrays;
+
+public enum Enabled {
+    ALL("all"),
+    ERROR("error"),
+    CRASH("crash"),
+    OFF("off");
+
+    private final String value;
+
+    Enabled(String value) {
+        this.value = value;
+    }
+
+    private boolean hasValue(String value) {
+        if (StringUtil.isEmptyOrSpaces(value)) {
+            return this.value == null;
+        }
+        return value.equals(this.value);
+    }
+
+    public static Enabled safeValueOf(String value) {
+        return Arrays.stream(values())
+                .filter(instance -> instance.hasValue(value))
+                .findAny()
+                .orElse(ALL);
+    }
+}

src/main/java/com/redhat/devtools/intellij/telemetry/core/configuration/limits/EventCounts.java

@@ -0,0 +1,183 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.telemetry.core.configuration.limits;
+
+import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.openapi.components.PersistentStateComponent;
+import com.intellij.openapi.components.Service;
+import com.intellij.openapi.components.State;
+import com.intellij.openapi.components.Storage;
+import com.intellij.util.xmlb.XmlSerializerUtil;
+import com.redhat.devtools.intellij.telemetry.core.service.Event;
+import org.apache.commons.lang.StringUtils;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.time.LocalDateTime;
+import java.time.ZonedDateTime;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+import static com.redhat.devtools.intellij.telemetry.core.util.TimeUtils.isToday;
+
+/**
+ * A counter that stores daily occurrences of events.
+ * The state is persisted and loaded by the IDEA platform
+ *
+ * @see PersistentStateComponent
+ */
+@Service
+@State(
+        name = " com.redhat.devtools.intellij.telemetry.core.configuration.limits.EventCounts",
+        storages = @Storage(value = "eventCounts.xml")
+)
+public final class EventCounts implements PersistentStateComponent<EventCounts> {
+
+    public static EventCounts getInstance() {
+        return ApplicationManager.getApplication().getService(EventCounts.class);
+    }
+
+    private static final String COUNT_VALUES_SEPARATOR = ",";
+
+    EventCounts() {}
+
+    public final Map<String, String> counts = new HashMap<>();
+
+    @Override
+    public EventCounts getState() {
+        return this;
+    }
+
+    @Override
+    public void loadState(@NotNull EventCounts state) {
+        XmlSerializerUtil.copyBean(state, this);
+    }
+
+    @Override
+    public void noStateLoaded() {
+        PersistentStateComponent.super.noStateLoaded();
+    }
+
+    @Override
+    public void initializeComponent() {
+        PersistentStateComponent.super.initializeComponent();
+    }
+
+    @Nullable
+    public Count get(Event event) {
+        if (event == null) {
+            return null;
+        }
+        String countString = counts.get(event.getName());
+        return toCount(countString);
+    }
+
+    public void put(Event event) {
+        Count count = createOrUpdateCount(event);
+        put(event, count);
+    }
+
+    EventCounts put(Event event, Count count) {
+        if (event == null) {
+            return this;
+        }
+        counts.put(event.getName(), toString(count));
+        return this;
+    }
+
+    private Count createOrUpdateCount(Event event) {
+        Count count = get(event);
+        if (count != null) {
+            // update existing
+            count = count.newOccurrence();
+        } else {
+            // create new
+            count = new Count();
+        }
+        return count;
+    }
+
+    private Count toCount(String string) {
+        if (StringUtils.isEmpty(string)) {
+            return null;
+        }
+        String[] split = string.split(COUNT_VALUES_SEPARATOR);
+        LocalDateTime lastOccurrence = toLastOccurrence(split[0]);
+        int total = toTotal(split[1]);
+        return new Count(lastOccurrence, total);
+    }
+
+    private LocalDateTime toLastOccurrence(String value) {
+        try {
+            long epochSeconds = Long.parseLong(value);
+            return LocalDateTime.ofEpochSecond(epochSeconds, 0, ZonedDateTime.now().getOffset());
+        } catch (NumberFormatException e) {
+            return null;
+        }
+    }
+
+    private int toTotal(String value) {
+        try {
+            return Integer.parseInt(value);
+        } catch (NumberFormatException e) {
+            return 0;
+        }
+    }
+
+    String toString(@NotNull Count count) {
+        long epochSecond = count.lastOccurrence.toEpochSecond(ZonedDateTime.now().getOffset());
+        return epochSecond + COUNT_VALUES_SEPARATOR + count.dailyTotal;
+    }
+
+    public static class Count {
+        private final LocalDateTime lastOccurrence;
+        private final int dailyTotal;
+
+        Count() {
+            this(LocalDateTime.now(), 1);
+        }
+
+        @Override
+        public boolean equals(Object o) {
+            if (this == o) return true;
+            if (!(o instanceof Count)) return false;
+            Count count = (Count) o;
+            return dailyTotal == count.dailyTotal && Objects.equals(lastOccurrence, count.lastOccurrence);
+        }
+
+        @Override
+        public int hashCode() {
+            return Objects.hash(lastOccurrence, dailyTotal);
+        }
+
+        Count(LocalDateTime lastOccurrence, int dailyTotal) {
+            this.lastOccurrence = lastOccurrence;
+            this.dailyTotal = dailyTotal;
+        }
+
+        public LocalDateTime getLastOccurrence() {
+            return lastOccurrence;
+        }
+
+        public int getDailyTotal() {
+            if (isToday(lastOccurrence)) {
+                return dailyTotal;
+            } else {
+                return 0;
+            }
+        }
+
+        public Count newOccurrence() {
+            return new Count(LocalDateTime.now(), getDailyTotal() + 1);
+        }
+    }
+}