Lots of refactoring, add tps command

4 files changed, 335 insertions, 0 deletions

diff --git a/spark-common/src/main/java/me/lucko/spark/common/util/AbstractHttpClient.java b/spark-common/src/main/java/me/lucko/spark/common/util/AbstractHttpClient.java
new file mode 100644
index 0000000..1ff169d
--- /dev/null
+++ b/spark-common/src/main/java/me/lucko/spark/common/util/AbstractHttpClient.java
@@ -0,0 +1,45 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package me.lucko.spark.common.util;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+import java.io.IOException;
+
+public class AbstractHttpClient {
+
+    /** The http client */
+    protected final OkHttpClient okHttp;
+
+    public AbstractHttpClient(OkHttpClient okHttp) {
+        this.okHttp = okHttp;
+    }
+
+    protected Response makeHttpRequest(Request request) throws IOException {
+        Response response = this.okHttp.newCall(request).execute();
+        if (!response.isSuccessful()) {
+            throw new RuntimeException("Request was unsuccessful: " + response.code() + " - " + response.message());
+        }
+        return response;
+    }
+}
diff --git a/spark-common/src/main/java/me/lucko/spark/common/util/BytebinClient.java b/spark-common/src/main/java/me/lucko/spark/common/util/BytebinClient.java
new file mode 100644
index 0000000..ff8f4e3
--- /dev/null
+++ b/spark-common/src/main/java/me/lucko/spark/common/util/BytebinClient.java
@@ -0,0 +1,149 @@
+/*
+ * This file is part of bytebin, licensed under the MIT License.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to deal
+ *  in the Software without restriction, including without limitation the rights
+ *  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ *  copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in all
+ *  copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ *  SOFTWARE.
+ */
+
+package me.lucko.spark.common.util;
+
+import okhttp3.MediaType;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+
+import java.io.IOException;
+
+/**
+ * Utility for posting content to bytebin.
+ */
+public class BytebinClient extends AbstractHttpClient {
+
+    /** The bytebin URL */
+    private final String url;
+    /** The client user agent */
+    private final String userAgent;
+
+    /**
+     * Creates a new bytebin instance
+     *
+     * @param url the bytebin url
+     * @param userAgent the client user agent string
+     */
+    public BytebinClient(OkHttpClient okHttpClient, String url, String userAgent) {
+        super(okHttpClient);
+        if (url.endsWith("/")) {
+            this.url = url;
+        } else {
+            this.url = url + "/";
+        }
+        this.userAgent = userAgent;
+    }
+
+    /**
+     * POSTs GZIP compressed content to bytebin.
+     *
+     * @param buf the compressed content
+     * @param contentType the type of the content
+     * @param allowModification if the paste should be modifiable
+     * @return the key of the resultant content
+     * @throws IOException if an error occurs
+     */
+    public Content postContent(byte[] buf, MediaType contentType, boolean allowModification) throws IOException {
+        RequestBody body = RequestBody.create(contentType, buf);
+
+        Request.Builder requestBuilder = new Request.Builder()
+                .url(this.url + "post")
+                .header("User-Agent", this.userAgent)
+                .header("Content-Encoding", "gzip");
+
+        if (allowModification) {
+            requestBuilder.header("Allow-Modification", "true");
+        }
+
+        Request request = requestBuilder.post(body).build();
+        try (Response response = makeHttpRequest(request)) {
+            String key = response.header("Location");
+            if (key == null) {
+                throw new IllegalStateException("Key not returned");
+            }
+
+            if (allowModification) {
+                String modificationKey = response.header("Modification-Key");
+                if (modificationKey == null) {
+                    throw new IllegalStateException("Modification key not returned");
+                }
+                return new Content(key, modificationKey);
+            } else {
+                return new Content(key);
+            }
+        }
+    }
+
+    /**
+     * PUTs modified GZIP compressed content to bytebin in place of existing content.
+     *
+     * @param existingContent the existing content
+     * @param buf the compressed content to put
+     * @param contentType the type of the content
+     * @throws IOException if an error occurs
+     */
+    public void modifyContent(Content existingContent, byte[] buf, MediaType contentType) throws IOException {
+        if (!existingContent.modifiable) {
+            throw new IllegalArgumentException("Existing content is not modifiable");
+        }
+
+        RequestBody body = RequestBody.create(contentType, buf);
+
+        Request.Builder requestBuilder = new Request.Builder()
+                .url(this.url + existingContent.key())
+                .header("User-Agent", this.userAgent)
+                .header("Content-Encoding", "gzip")
+                .header("Modification-Key", existingContent.modificationKey);
+
+        Request request = requestBuilder.put(body).build();
+        makeHttpRequest(request).close();
+    }
+
+    public static final class Content {
+        private final String key;
+        private final boolean modifiable;
+        private final String modificationKey;
+
+        Content(String key) {
+            this.key = key;
+            this.modifiable = false;
+            this.modificationKey = null;
+        }
+
+        Content(String key, String modificationKey) {
+            this.key = key;
+            this.modifiable = true;
+            this.modificationKey = modificationKey;
+        }
+
+        public String key() {
+            return this.key;
+        }
+    }
+
+}
diff --git a/spark-common/src/main/java/me/lucko/spark/common/util/ThreadFinder.java b/spark-common/src/main/java/me/lucko/spark/common/util/ThreadFinder.java
new file mode 100644
index 0000000..cc0722a
--- /dev/null
+++ b/spark-common/src/main/java/me/lucko/spark/common/util/ThreadFinder.java
@@ -0,0 +1,60 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package me.lucko.spark.common.util;
+
+import java.util.Arrays;
+import java.util.Objects;
+import java.util.stream.Stream;
+
+/**
+ * Utility to find active threads.
+ */
+public final class ThreadFinder {
+
+    private static final ThreadGroup ROOT_THREAD_GROUP;
+    static {
+        ThreadGroup rootGroup = Thread.currentThread().getThreadGroup();
+        ThreadGroup parentGroup;
+        while ((parentGroup = rootGroup.getParent()) != null) {
+            rootGroup = parentGroup;
+        }
+        ROOT_THREAD_GROUP = rootGroup;
+    }
+
+    // cache the approx active count at the time of construction.
+    // the usages of this class are likely to be somewhat short-lived, so it's good
+    // enough to just cache a value on init.
+    private final int approxActiveCount = ROOT_THREAD_GROUP.activeCount();
+
+    /**
+     * Gets a stream of all known active threads.
+     *
+     * @return a stream of threads
+     */
+    public Stream<Thread> getThreads() {
+        Thread[] threads = new Thread[this.approxActiveCount + 20]; // +20 to allow a bit of growth for newly created threads
+        while (ROOT_THREAD_GROUP.enumerate(threads, true) == threads.length) {
+            threads = new Thread[threads.length * 2];
+        }
+        return Arrays.stream(threads).filter(Objects::nonNull);
+    }
+
+}
diff --git a/spark-common/src/main/java/me/lucko/spark/common/util/TypeDescriptors.java b/spark-common/src/main/java/me/lucko/spark/common/util/TypeDescriptors.java
new file mode 100644
index 0000000..a232e77
--- /dev/null
+++ b/spark-common/src/main/java/me/lucko/spark/common/util/TypeDescriptors.java
@@ -0,0 +1,81 @@
+/*
+ * This file is part of spark.
+ *
+ *  Copyright (c) lucko (Luck) <luck@lucko.me>
+ *  Copyright (c) contributors
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package me.lucko.spark.common.util;
+
+/**
+ * Utilities for working with Java type descriptors.
+ */
+public final class TypeDescriptors {
+
+    /**
+     * Returns the Java type corresponding to the given type descriptor.
+     *
+     * @param typeDescriptor a type descriptor.
+     * @return the Java type corresponding to the given type descriptor.
+     */
+    public static String getJavaType(String typeDescriptor) {
+        return getJavaType(typeDescriptor.toCharArray(), 0);
+    }
+
+    private static String getJavaType(char[] buf, int offset) {
+        int len;
+        switch (buf[offset]) {
+            case 'V':
+                return "void";
+            case 'Z':
+                return "boolean";
+            case 'C':
+                return "char";
+            case 'B':
+                return "byte";
+            case 'S':
+                return "short";
+            case 'I':
+                return "int";
+            case 'F':
+                return "float";
+            case 'J':
+                return "long";
+            case 'D':
+                return "double";
+            case '[': // array
+                len = 1;
+                while (buf[offset + len] == '[') {
+                    len++;
+                }
+
+                StringBuilder sb = new StringBuilder(getJavaType(buf, offset + len));
+                for (int i = len; i > 0; --i) {
+                    sb.append("[]");
+                }
+                return sb.toString();
+            case 'L': // object
+                len = 1;
+                while (buf[offset + len] != ';') {
+                    len++;
+                }
+                return new String(buf, offset + 1, len - 1);
+            default:
+                return new String(buf, offset, buf.length - offset);
+        }
+    }
+
+}