From e27d5967029f4f3da8889dd673ba516dcd9f3ac8 Mon Sep 17 00:00:00 2001
From: gegy1000
Date: Sun, 16 Jun 2019 23:49:25 +0200
Subject: Plugin rework along with API rework: Enigma split from EnigmaProject;
 plugins now provide services configurable via a profile

---
 src/main/java/cuchaz/enigma/Enigma.java | 114 ++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 src/main/java/cuchaz/enigma/Enigma.java

(limited to 'src/main/java/cuchaz/enigma/Enigma.java')

diff --git a/src/main/java/cuchaz/enigma/Enigma.java b/src/main/java/cuchaz/enigma/Enigma.java
new file mode 100644
index 0000000..9f88f77
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/Enigma.java
@@ -0,0 +1,114 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * <p>
+ * Contributors:
+ * Jeff Martin - initial API and implementation
+ ******************************************************************************/
+
+package cuchaz.enigma;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ImmutableMap;
+import cuchaz.enigma.analysis.ClassCache;
+import cuchaz.enigma.analysis.index.JarIndex;
+import cuchaz.enigma.api.EnigmaPlugin;
+import cuchaz.enigma.api.EnigmaPluginContext;
+import cuchaz.enigma.api.service.EnigmaService;
+import cuchaz.enigma.api.service.EnigmaServiceFactory;
+import cuchaz.enigma.api.service.EnigmaServiceType;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.ServiceLoader;
+
+public class Enigma {
+	private final EnigmaProfile profile;
+	private final EnigmaServices services;
+
+	private Enigma(EnigmaProfile profile, EnigmaServices services) {
+		this.profile = profile;
+		this.services = services;
+	}
+
+	public static Enigma create() {
+		return new Builder().build();
+	}
+
+	public static Builder builder() {
+		return new Builder();
+	}
+
+	public EnigmaProject openJar(Path path, ProgressListener progress) throws IOException {
+		ClassCache classCache = ClassCache.of(path);
+		JarIndex jarIndex = classCache.index(progress);
+
+		return new EnigmaProject(this, classCache, jarIndex);
+	}
+
+	public EnigmaProfile getProfile() {
+		return profile;
+	}
+
+	public EnigmaServices getServices() {
+		return services;
+	}
+
+	public static class Builder {
+		private EnigmaProfile profile = EnigmaProfile.EMPTY;
+		private Iterable<EnigmaPlugin> plugins = ServiceLoader.load(EnigmaPlugin.class);
+
+		private Builder() {
+		}
+
+		public Builder setProfile(EnigmaProfile profile) {
+			Preconditions.checkNotNull(profile, "profile cannot be null");
+			this.profile = profile;
+			return this;
+		}
+
+		public Builder setPlugins(Iterable<EnigmaPlugin> plugins) {
+			Preconditions.checkNotNull(plugins, "plugins cannot be null");
+			this.plugins = plugins;
+			return this;
+		}
+
+		public Enigma build() {
+			PluginContext pluginContext = new PluginContext(profile);
+			for (EnigmaPlugin plugin : plugins) {
+				plugin.init(pluginContext);
+			}
+
+			EnigmaServices services = pluginContext.buildServices();
+			return new Enigma(profile, services);
+		}
+	}
+
+	private static class PluginContext implements EnigmaPluginContext {
+		private final EnigmaProfile profile;
+
+		private final ImmutableMap.Builder<EnigmaServiceType<?>, EnigmaService> services = ImmutableMap.builder();
+
+		PluginContext(EnigmaProfile profile) {
+			this.profile = profile;
+		}
+
+		@Override
+		public <T extends EnigmaService> void registerService(String id, EnigmaServiceType<T> serviceType, EnigmaServiceFactory<T> factory) {
+			EnigmaProfile.Service serviceProfile = profile.getServiceProfile(serviceType);
+
+			// if this service type is not configured, or it is configured to use a different service id, skip
+			if (serviceProfile == null || !serviceProfile.matches(id)) return;
+
+			T service = factory.create(serviceProfile::getArgument);
+			services.put(serviceType, service);
+		}
+
+		EnigmaServices buildServices() {
+			return new EnigmaServices(services.build());
+		}
+	}
+}
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