Create health check for size of the log files xwikisas#35 - draft

* Created a check for verifying the size of the logs folder

application-admintools-default/src/main/java/com/xwiki/admintools/internal/health/checks/performance/LogsSizeCheck.java

@@ -0,0 +1,87 @@
+/*
+ * See the NOTICE file distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+package com.xwiki.admintools.internal.health.checks.performance;
+
+import java.io.File;
+import java.text.DecimalFormat;
+
+import javax.inject.Inject;
+import javax.inject.Named;
+import javax.inject.Singleton;
+
+import org.xwiki.component.annotation.Component;
+
+import com.xwiki.admintools.ServerIdentifier;
+import com.xwiki.admintools.health.HealthCheck;
+import com.xwiki.admintools.health.HealthCheckResult;
+import com.xwiki.admintools.internal.data.identifiers.CurrentServer;
+
+@Component
+@Named(LogsSizeCheck.HINT)
+@Singleton
+public class LogsSizeCheck implements HealthCheck
+{
+    /**
+     * Component identifier.
+     */
+    public static final String HINT = "logSize";
+
+    @Inject
+    private CurrentServer currentServer;
+
+    @Override
+    public HealthCheckResult check()
+    {
+        ServerIdentifier server = currentServer.getCurrentServer();
+
+        long logsSize = getFolderSize(server.getLogsFolderPath());
+
+        String[] units = new String[] { "B", "KB", "MB", "GB" };
+        int unitIndex = (int) (Math.log10(logsSize) / 3);
+        double unitValue = 1 << (unitIndex * 10);
+
+        String readableSize = new DecimalFormat("#,##0.#").format(logsSize / unitValue) + " " + units[unitIndex];
+
+        // NEED TO SET SOME METRICS. WHAT LOG SIZE IS TOO BIG?
+        if (logsSize / (1024 * 1024) > 500) {
+            return new HealthCheckResult("adminTools.dashboard.healthcheck.performance.cpu.info", "info");
+        } else {
+            return new HealthCheckResult("adminTools.dashboard.healthcheck.performance.cpu.warn",
+                "adminTools.dashboard.healthcheck.performance.cpu.recommendation", "error", "cpuSpecifications");
+        }
+    }
+
+    public static long getFolderSize(String folderPath)
+    {
+        File folder = new File(folderPath);
+        long length = 0;
+        File[] files = folder.listFiles();
+        if (files != null) {
+            for (File file : files) {
+                if (file.isFile()) {
+                    length += file.length();
+                } else {
+                    length += getFolderSize(file.getAbsolutePath());
+                }
+            }
+        }
+        return length;
+    }
+}

application-admintools-default/src/main/resources/META-INF/components.txt

@@ -20,6 +20,7 @@ com.xwiki.admintools.internal.health.checks.security.ConfigurationEncodingHealth
 com.xwiki.admintools.internal.health.checks.security.FileEncodingHealthCheck
 com.xwiki.admintools.internal.health.checks.security.LangEncodingHealthCheck
 com.xwiki.admintools.internal.health.checks.performance.CPUHealthCheck
+com.xwiki.admintools.internal.health.checks.performance.LogsSizeCheck
 com.xwiki.admintools.internal.health.checks.performance.PhysicalMemoryHealthCheck
 com.xwiki.admintools.internal.health.checks.performance.PhysicalSpaceHealthCheck
 com.xwiki.admintools.internal.health.checks.memory.CacheMemoryHealthCheck