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refactor addon loader to new module

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dfsek
2021-06-29 19:34:54 -07:00
parent 9880f488e5
commit 22c97ca390
18 changed files with 33 additions and 33 deletions
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61
common/implementation/src/main/java/com/dfsek/terra/addon/AddonClassLoader.java
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@@ -1,61 +0,0 @@
package com.dfsek.terra.addon;
import com.dfsek.terra.api.addon.TerraAddon;
import com.dfsek.terra.api.addon.annotations.Addon;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Set;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
public class AddonClassLoader extends URLClassLoader {
static {
ClassLoader.registerAsParallelCapable();
}
public AddonClassLoader(URL[] urls, ClassLoader parent) {
super(urls, parent);
}
public AddonClassLoader(URL[] urls) {
super(urls);
}
@SuppressWarnings("unchecked")
public static Set<Class<? extends TerraAddon>> fetchAddonClasses(File file) throws IOException {
JarFile jarFile = new JarFile(file);
Enumeration<JarEntry> entries = jarFile.entries();
AddonClassLoader loader = new AddonClassLoader(new URL[] {file.toURI().toURL()}, AddonClassLoader.class.getClassLoader());
Set<Class<? extends TerraAddon>> set = new HashSet<>();
while(entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
if(entry.isDirectory() || !entry.getName().endsWith(".class")) continue;
String className = entry.getName().substring(0, entry.getName().length() - 6).replace('/', '.');
try {
Class<?> clazz = loader.loadClass(className);
Addon addon = clazz.getAnnotation(Addon.class);
if(addon == null) continue;
if(!TerraAddon.class.isAssignableFrom(clazz))
throw new IllegalArgumentException("Addon class \"" + clazz + "\" must extend TerraAddon.");
set.add((Class<? extends TerraAddon>) clazz);
} catch(ClassNotFoundException e) {
throw new IllegalStateException(e); // this should literally never happen, if it does something is very wrong
}
}
return set;
}
}

42
common/implementation/src/main/java/com/dfsek/terra/addon/AddonPool.java
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@@ -1,42 +0,0 @@
package com.dfsek.terra.addon;
import com.dfsek.terra.addon.exception.AddonLoadException;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
public class AddonPool {
private final Map<String, PreLoadAddon> pool = new HashMap<>();
public void add(PreLoadAddon addon) throws AddonLoadException {
if(pool.containsKey(addon.getId())) {
String message = "Duplicate addon ID: " +
addon.getId() + "; original ID from file: " +
pool.get(addon.getId()).getFile().getAbsolutePath() +
", class: " +
pool.get(addon.getId()).getAddonClass().getCanonicalName() +
"Duplicate ID from file: " +
addon.getFile().getAbsolutePath() +
", class: " +
addon.getAddonClass().getCanonicalName();
throw new AddonLoadException(message);
}
pool.put(addon.getId(), addon);
}
public PreLoadAddon get(String id) {
return pool.get(id);
}
public void buildAll() throws AddonLoadException {
for(PreLoadAddon value : pool.values()) {
value.rebuildDependencies(this, value, true);
}
}
public Set<PreLoadAddon> getAddons() {
return new HashSet<>(pool.values());
}
}

58
common/implementation/src/main/java/com/dfsek/terra/addon/PreLoadAddon.java
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@@ -1,58 +0,0 @@
package com.dfsek.terra.addon;
import com.dfsek.terra.addon.exception.AddonLoadException;
import com.dfsek.terra.addon.exception.CircularDependencyException;
import com.dfsek.terra.addon.exception.DependencyMissingException;
import com.dfsek.terra.api.addon.TerraAddon;
import com.dfsek.terra.api.addon.annotations.Addon;
import com.dfsek.terra.api.addon.annotations.Depends;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
public class PreLoadAddon {
private final List<PreLoadAddon> depends = new ArrayList<>();
private final Class<? extends TerraAddon> addonClass;
private final String id;
private final String[] dependencies;
private final File file;
public PreLoadAddon(Class<? extends TerraAddon> addonClass, File file) {
this.addonClass = addonClass;
this.id = addonClass.getAnnotation(Addon.class).value();
this.file = file;
Depends depends = addonClass.getAnnotation(Depends.class);
this.dependencies = depends == null ? new String[] {} : depends.value();
}
public List<PreLoadAddon> getDepends() {
return depends;
}
public void rebuildDependencies(AddonPool pool, PreLoadAddon origin, boolean levelG1) throws AddonLoadException {
if(this.equals(origin) && !levelG1)
throw new CircularDependencyException("Detected circular dependency in addon \"" + id + "\", dependencies: " + Arrays.toString(dependencies));
for(String dependency : dependencies) {
PreLoadAddon preLoadAddon = pool.get(dependency);
if(preLoadAddon == null)
throw new DependencyMissingException("Dependency " + dependency + " was not found. Please install " + dependency + " to use " + id + ".");
depends.add(preLoadAddon);
preLoadAddon.rebuildDependencies(pool, origin, false);
}
}
public String getId() {
return id;
}
public Class<? extends TerraAddon> getAddonClass() {
return addonClass;
}
public File getFile() {
return file;
}
}

13
common/implementation/src/main/java/com/dfsek/terra/addon/exception/AddonLoadException.java
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@@ -1,13 +0,0 @@
package com.dfsek.terra.addon.exception;
public class AddonLoadException extends Exception {
private static final long serialVersionUID = -4949084729296580176L;
public AddonLoadException(String message) {
super(message);
}
public AddonLoadException(String message, Throwable cause) {
super(message, cause);
}
}

13
common/implementation/src/main/java/com/dfsek/terra/addon/exception/CircularDependencyException.java
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@@ -1,13 +0,0 @@
package com.dfsek.terra.addon.exception;
public class CircularDependencyException extends AddonLoadException {
private static final long serialVersionUID = 7398510879124125121L;
public CircularDependencyException(String message) {
super(message);
}
public CircularDependencyException(String message, Throwable cause) {
super(message, cause);
}
}

13
common/implementation/src/main/java/com/dfsek/terra/addon/exception/DependencyMissingException.java
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@@ -1,13 +0,0 @@
package com.dfsek.terra.addon.exception;
public class DependencyMissingException extends AddonLoadException {
private static final long serialVersionUID = -8419489102208521583L;
public DependencyMissingException(String message) {
super(message);
}
public DependencyMissingException(String message, Throwable cause) {
super(message, cause);
}
}

10
common/implementation/src/main/java/com/dfsek/terra/registry/master/AddonRegistry.java
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@@ -34,7 +34,7 @@ public class AddonRegistry extends OpenRegistryImpl<TerraAddon> {
public boolean add(String identifier, TerraAddon addon) {
if(contains(identifier)) throw new IllegalArgumentException("Addon " + identifier + " is already registered.");
addon.initialize();
main.logger().info("Loaded addon " + addon.getName() + " v" + addon.getVersion() + ", by " + addon.getAuthor());
main.logger().info("Loaded com.dfsek.terra.addon " + addon.getName() + " v" + addon.getVersion() + ", by " + addon.getAuthor());
return super.add(identifier, addon);
}
@@ -88,15 +88,15 @@ public class AddonRegistry extends OpenRegistryImpl<TerraAddon> {
pluginInjector.inject(loadedAddon);
loggerInjector.inject(loadedAddon);
} catch(InstantiationException | IllegalAccessException | InvocationTargetException | InjectionException e) {
throw new AddonLoadException("Failed to load addon \" + " + addon.getId() + "\": ", e);
throw new AddonLoadException("Failed to load com.dfsek.terra.addon \" + " + addon.getId() + "\": ", e);
}
try {
addChecked(loadedAddon.getName(), loadedAddon);
} catch(DuplicateEntryException e) {
valid = false;
main.logger().severe("Duplicate addon ID; addon with ID " + loadedAddon.getName() + " is already loaded.");
main.logger().severe("Existing addon class: " + get(loadedAddon.getName()).getClass().getCanonicalName());
main.logger().severe("Duplicate addon class: " + addonClass.getCanonicalName());
main.logger().severe("Duplicate com.dfsek.terra.addon ID; com.dfsek.terra.addon with ID " + loadedAddon.getName() + " is already loaded.");
main.logger().severe("Existing com.dfsek.terra.addon class: " + get(loadedAddon.getName()).getClass().getCanonicalName());
main.logger().severe("Duplicate com.dfsek.terra.addon class: " + addonClass.getCanonicalName());
}
}
} catch(AddonLoadException | IOException e) {