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improve PluginDescriptorFinder implementations (see #70)

pull/72/head
Decebal Suiu 9 years ago
parent
eefe2341bd
commit
f0121fc02a
2 changed files with 93 additions and 67 deletions
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  1. 90
      pf4j/src/main/java/ro/fortsoft/pf4j/ManifestPluginDescriptorFinder.java
  2. 70
      pf4j/src/main/java/ro/fortsoft/pf4j/PropertiesPluginDescriptorFinder.java

90
pf4j/src/main/java/ro/fortsoft/pf4j/ManifestPluginDescriptorFinder.java
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@ -13,6 +13,10 @@
package ro.fortsoft.pf4j; package ro.fortsoft.pf4j;
import com.github.zafarkhaja.semver.Version; import com.github.zafarkhaja.semver.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ro.fortsoft.pf4j.util.StringUtils;
import java.io.File; import java.io.File;
import java.io.FileInputStream; import java.io.FileInputStream;
import java.io.FileNotFoundException; import java.io.FileNotFoundException;
@ -20,11 +24,6 @@ import java.io.IOException;
import java.util.jar.Attributes; import java.util.jar.Attributes;
import java.util.jar.Manifest; import java.util.jar.Manifest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ro.fortsoft.pf4j.util.StringUtils;
/** /**
* Read the plugin descriptor from the manifest file. * Read the plugin descriptor from the manifest file.
* *
@ -42,74 +41,87 @@ public class ManifestPluginDescriptorFinder implements PluginDescriptorFinder {
@Override @Override
public PluginDescriptor find(File pluginRepository) throws PluginException { public PluginDescriptor find(File pluginRepository) throws PluginException {
// TODO it's ok with first classes directory? Another idea is to specify in PluginClasspath the folder. Manifest manifest = readManifest(pluginRepository);
String classes = pluginClasspath.getClassesDirectories().get(0);
PluginDescriptor pluginDescriptor = createPluginDescriptor(manifest);
validatePluginDescriptor(pluginDescriptor);
return pluginDescriptor;
}
protected Manifest readManifest(File pluginRepository) throws PluginException {
// TODO it's ok with first classes directory? Another idea is to specify in PluginClasspath the folder.
String classes = pluginClasspath.getClassesDirectories().get(0);
File manifestFile = new File(pluginRepository, classes + "/META-INF/MANIFEST.MF"); File manifestFile = new File(pluginRepository, classes + "/META-INF/MANIFEST.MF");
log.debug("Lookup plugin descriptor in '{}'", manifestFile); log.debug("Lookup plugin descriptor in '{}'", manifestFile);
if (!manifestFile.exists()) { if (!manifestFile.exists()) {
throw new PluginException("Cannot find '" + manifestFile + "' file"); throw new PluginException("Cannot find '" + manifestFile + "' file");
} }
FileInputStream input = null; FileInputStream input = null;
try { try {
input = new FileInputStream(manifestFile); input = new FileInputStream(manifestFile);
} catch (FileNotFoundException e) { } catch (FileNotFoundException e) {
// not happening // not happening
} }
Manifest manifest = null; Manifest manifest = null;
try { try {
manifest = new Manifest(input); manifest = new Manifest(input);
} catch (IOException e) { } catch (IOException e) {
throw new PluginException(e.getMessage(), e); throw new PluginException(e.getMessage(), e);
} finally { } finally {
try { try {
input.close(); input.close();
} catch (IOException e) { } catch (IOException e) {
throw new PluginException(e.getMessage(), e); throw new PluginException(e.getMessage(), e);
} }
} }
return manifest;
}
protected PluginDescriptor createPluginDescriptor(Manifest manifest) {
PluginDescriptor pluginDescriptor = new PluginDescriptor(); PluginDescriptor pluginDescriptor = new PluginDescriptor();
// TODO validate !!! // TODO validate !!!
Attributes attrs = manifest.getMainAttributes(); Attributes attributes = manifest.getMainAttributes();
String id = attrs.getValue("Plugin-Id"); String id = attributes.getValue("Plugin-Id");
if (StringUtils.isEmpty(id)) {
throw new PluginException("Plugin-Id cannot be empty");
}
pluginDescriptor.setPluginId(id); pluginDescriptor.setPluginId(id);
String description = attrs.getValue("Plugin-Description"); String description = attributes.getValue("Plugin-Description");
if (StringUtils.isEmpty(description)) { if (StringUtils.isEmpty(description)) {
pluginDescriptor.setPluginDescription(""); pluginDescriptor.setPluginDescription("");
} else { } else {
pluginDescriptor.setPluginDescription(description); pluginDescriptor.setPluginDescription(description);
} }
String clazz = attrs.getValue("Plugin-Class"); String clazz = attributes.getValue("Plugin-Class");
if (StringUtils.isEmpty(clazz)) {
throw new PluginException("Plugin-Class cannot be empty");
}
pluginDescriptor.setPluginClass(clazz); pluginDescriptor.setPluginClass(clazz);
String version = attrs.getValue("Plugin-Version"); String version = attributes.getValue("Plugin-Version");
if (StringUtils.isEmpty(version)) {
throw new PluginException("Plugin-Version cannot be empty");
}
pluginDescriptor.setPluginVersion(Version.valueOf(version)); pluginDescriptor.setPluginVersion(Version.valueOf(version));
String provider = attrs.getValue("Plugin-Provider"); String provider = attributes.getValue("Plugin-Provider");
pluginDescriptor.setProvider(provider); pluginDescriptor.setProvider(provider);
String dependencies = attrs.getValue("Plugin-Dependencies"); String dependencies = attributes.getValue("Plugin-Dependencies");
pluginDescriptor.setDependencies(dependencies); pluginDescriptor.setDependencies(dependencies);
String requires = attrs.getValue("Plugin-Requires"); String requires = attributes.getValue("Plugin-Requires");
if (StringUtils.isNotEmpty(requires)) { if (StringUtils.isNotEmpty(requires)) {
pluginDescriptor.setRequires(requires); pluginDescriptor.setRequires(requires);
} }
return pluginDescriptor; return pluginDescriptor;
} }
protected void validatePluginDescriptor(PluginDescriptor pluginDescriptor) throws PluginException {
if (StringUtils.isEmpty(pluginDescriptor.getPluginId())) {
throw new PluginException("Plugin-Id cannot be empty");
}
if (StringUtils.isEmpty(pluginDescriptor.getPluginClass())) {
throw new PluginException("Plugin-Class cannot be empty");
}
}
} }

70
pf4j/src/main/java/ro/fortsoft/pf4j/PropertiesPluginDescriptorFinder.java
Unescape View File

@ -13,6 +13,10 @@
package ro.fortsoft.pf4j; package ro.fortsoft.pf4j;
import com.github.zafarkhaja.semver.Version; import com.github.zafarkhaja.semver.Version;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ro.fortsoft.pf4j.util.StringUtils;
import java.io.File; import java.io.File;
import java.io.FileInputStream; import java.io.FileInputStream;
import java.io.FileNotFoundException; import java.io.FileNotFoundException;
@ -20,11 +24,6 @@ import java.io.IOException;
import java.io.InputStream; import java.io.InputStream;
import java.util.Properties; import java.util.Properties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import ro.fortsoft.pf4j.util.StringUtils;
/** /**
* Find a plugin descriptor in a properties file (in plugin repository). * Find a plugin descriptor in a properties file (in plugin repository).
* *
@ -48,59 +47,74 @@ public class PropertiesPluginDescriptorFinder implements PluginDescriptorFinder
@Override @Override
public PluginDescriptor find(File pluginRepository) throws PluginException { public PluginDescriptor find(File pluginRepository) throws PluginException {
Properties properties = readProperties(pluginRepository);
PluginDescriptor pluginDescriptor = createPluginDescriptor(properties);
validatePluginDescriptor(pluginDescriptor);
return pluginDescriptor;
}
protected Properties readProperties(File pluginRepository) throws PluginException {
File propertiesFile = new File(pluginRepository, propertiesFileName); File propertiesFile = new File(pluginRepository, propertiesFileName);
log.debug("Lookup plugin descriptor in '{}'", propertiesFile); log.debug("Lookup plugin descriptor in '{}'", propertiesFile);
if (!propertiesFile.exists()) { if (!propertiesFile.exists()) {
throw new PluginException("Cannot find '" + propertiesFile + "' file"); throw new PluginException("Cannot find '" + propertiesFile + "' file");
} }
InputStream input = null; InputStream input = null;
try { try {
input = new FileInputStream(propertiesFile); input = new FileInputStream(propertiesFile);
} catch (FileNotFoundException e) { } catch (FileNotFoundException e) {
// not happening // not happening
} }
Properties properties = new Properties(); Properties properties = new Properties();
try { try {
properties.load(input); properties.load(input);
} catch (IOException e) { } catch (IOException e) {
throw new PluginException(e.getMessage(), e); throw new PluginException(e.getMessage(), e);
} finally { } finally {
try { try {
input.close(); input.close();
} catch (IOException e) { } catch (IOException e) {
throw new PluginException(e.getMessage(), e); throw new PluginException(e.getMessage(), e);
} }
} }
return properties;
}
protected PluginDescriptor createPluginDescriptor(Properties properties) {
PluginDescriptor pluginDescriptor = new PluginDescriptor(); PluginDescriptor pluginDescriptor = new PluginDescriptor();
// TODO validate !!! // TODO validate !!!
String id = properties.getProperty("plugin.id"); String id = properties.getProperty("plugin.id");
if (StringUtils.isEmpty(id)) {
throw new PluginException("plugin.id cannot be empty");
}
pluginDescriptor.setPluginId(id); pluginDescriptor.setPluginId(id);
String clazz = properties.getProperty("plugin.class"); String clazz = properties.getProperty("plugin.class");
if (StringUtils.isEmpty(clazz)) {
throw new PluginException("plugin.class cannot be empty");
}
pluginDescriptor.setPluginClass(clazz); pluginDescriptor.setPluginClass(clazz);
String version = properties.getProperty("plugin.version"); String version = properties.getProperty("plugin.version");
if (StringUtils.isEmpty(version)) {
throw new PluginException("plugin.version cannot be empty");
}
pluginDescriptor.setPluginVersion(Version.valueOf(version)); pluginDescriptor.setPluginVersion(Version.valueOf(version));
String provider = properties.getProperty("plugin.provider"); String provider = properties.getProperty("plugin.provider");
pluginDescriptor.setProvider(provider); pluginDescriptor.setProvider(provider);
String dependencies = properties.getProperty("plugin.dependencies"); String dependencies = properties.getProperty("plugin.dependencies");
pluginDescriptor.setDependencies(dependencies); pluginDescriptor.setDependencies(dependencies);
return pluginDescriptor; return pluginDescriptor;
} }
protected void validatePluginDescriptor(PluginDescriptor pluginDescriptor) throws PluginException {
if (StringUtils.isEmpty(pluginDescriptor.getPluginId())) {
throw new PluginException("plugin.id cannot be empty");
}
if (StringUtils.isEmpty(pluginDescriptor.getPluginClass())) {
throw new PluginException("plugin.class cannot be empty");
}
}
} }

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